Click on one of the people below to find out more information.

Owner/Dealer Principal

Dave Isbell, Owner and Dealer Principal


General Manager

Chris Hunt, General Manager



TJ Slivka , BMW/MB Sales Manager

I grew up in the car business, washing cars is where it all began.  My family has a long history in the automotive industry and I have learned so much from their experiences.  My family and mentors have always taught me that success comes from making people smile and building strong relationships. I take pride being able to share these values with all of our employees.

When you walk into Grand Blanc Motorcars, we not only want you to feel welcome, we want you to feel like you are part of our family.  We focus on making all experiences personal yet professional.  My door is always open and I look forward to meeting anyone who walks in.

When I am not working, it's all about family, I love spending time with them.  We try to get on the Michigan lakes as much as possible in the summer.  Whenever, I have the opportunity, I like to travel and check out new places.  I'm an avid car enthusiast, so car show are always a good time.  I support many local charities and organizations such as the CRIM, Whaley Children's Center and Grand Blanc Schools.  My job is my passion and I am very fortunate to get to do what I love every day.

Servicing brands like Mercedes-Benz, BMW, Sprinter, and Toyota is an honor.  Their goal of continuous improvement is always a top priority.  I always appreciate feedback from our customers about our business and practices so that we can focus on any changes we may need to make as well hear about the things we are doing right.  At Grand Blanc Motorcars, we understand that our customers "are" our business.  Your complete satisfaction is our #1 priority.

If there is anything I can do to assist you with any automotive situation you may have, please feel free to contact me anytime.

Doug Ulin, Toyota Sales Manager

Tina Gray, Dealership Office Manager

Brent Edwards, Service Director

Jerry Kuchar, Parts Director

From a young age I was fascinated by vehicles.  I took Automotive classes in High School as a Freshman and Sophmore, eventually working my way up to actually Teaching the class my Senior year.  I then attended MSU (Go Green!), for two years, where I continued my Automotive education.  I continue to love all the challenges that come with the Automotive business.  

When I am not here at the dealership, I enjoy spending time with my wife of  23-years, Graciela, our five children, and our 16 grandchildren.  I also spend time everyday thinking of our son, Ricky, who is now in Heaven, after passing away at the young age of 25-years-old.  I take the grandchildren Hunting, Fishing, and boating.  Graciela and I spend a lot of time gardening, cutting trees, and chopping wood.  When I have some time alone, I enjoy watching old western shows.  

My simple philosophy is to treat others the way I would want to be treated.  That is why when you come and see me in the Parts Department, for Mercedes, BMW, Toyota, or Sprinter parts I will be sure to give you a fair price and great service.  I look forward to seeing you at Grand Blanc Motorcars. 



Diyar Assoofi, Mercedes-Benz Sales Consultant

Rick Howard, MB Auto & Fleet Consultant

After 15 years with Electronic Data Systems, I made the career change to Marine Sales.  I enjoyed representing quality products like Sea Ray, Azimut and Carver Yachts.  I find it interesting and rewarding to help people find exactly what they are looking for.  After the economic downturn, I made the decision to focus my efforts on the auto industry.  Grand Blanc Motorcars is the perfect fit for me.  We have an impressive lineup of high quality vehicles, and there is complete commitment to customer satisfaction.  

When I am not working, I am an avid reader of anything Grisham.  If I am not reading, then I am probably playing some sort of card game.  I have a keen aversion for Texas Hold 'Em.  

I am one of those fortunate people, whose passion is perfectly aligned with his career; making me the ideal person to assist in your vehicle purchase.  I am dedicated to delivering every customer the ultimate automotive experience. 

So if you have any questions, want to drive one of our amazing products or just want to have a cup of coffee, please don't hesitate to contact me.  I'm here to work for you!

Matt Gerry, BMW Sales Consultant

Dean Lakey, BMW Sales Consultant

After 35 years in the retail business, I found my calling in the automotive industry.  In all those years one thing remained true.  I always enjoy people.  You never know who you're going to meet in a day.  Serving customers at Grand Blanc Motorcars is my #1 objective.  To achieve success in this business, building solid relationships with customers is vital.  I pride myself in instances where the history of vehicle purchases climbs a family tree.  I love seeing the joy of new owners as they take home a quality vehicle that I am confident will serve their needs.  So when their friends and family stop in, a good foundation has already been laid out.

Family is very important to keeping a healthy balance in life, especially with a career that has such a demanding schedule.  I am thankful for the blessings life has brought our family.  We enjoy spending time together, and when recreation is called for, an obsession for golf rises up.  There is nothing like the serenity of the outdoors.

Whether it's an automotive need or just a good cup of coffee, I invite you to stop by.  Here at GBMC, its all about the people!

Sean White, BMW Sales Consultant

In 2014, I was ranked 5th in the nation in Cadillac sales. I am one of the only salespeople to ever win the Cadillac Crest Trophy 3 consecutive times.

I use to run an audio production studio, I still like to do a little sound production in my spare time. I love to wake up and exercise before work every morning.

I will bring a new level of luxury vehicle buying experience to all of my clients. I treat all of my clients like family and put my heart into helping them find the perfect vehicle.

Patrick Adams, Toyota Sales Consultant

I have a Bachelors degree from the University of Michigan - Flint in History and a Masters of Public Administration also from the University of Michigan - Flint. I have just joined Grand Blanc Motorcars and look forward to helping you find the perfect vehicle.

In my free time I enjoy biking, boating, and hiking. Basically anything outside. I also am an avid reader and I'm trying (without much success) to learn French and guitar.

I'm very excited to be at Grand Blanc Motorcars because I have a passion for helping people and get joy when others are happy. I will go the extra mile to make sure you get the very best vehicle that fits your lifestyle.

Lee Debolski, Toyota Sales Consultant

For more then two decades I have found fulfillment in the automobile industry.  I started in 1984 and have enjoyed it ever since.  The challenges of helping someone find the right vehicle and all that it entails have become a real comfort zone for me.  The excitement on a person's face as they take delivery and the confidence earned when they return to me for their future purchases or service needs is priceless.  Here at Grand Blanc Motorcars we pride ourselves in just that confidence.   Our brands are of the highest quality and so are our people.  These things make it a joy to be at work.  

When I am not working, I find real grounding with my beautiful wife, Maria, and our two wonderful children.  Our children are not little anymore and have established themselves into adults with fulfilling careers of their own.  Our son, Ryan, is a professional photographer.  And our daughter, Nicole, is an acclaimed architect in the country of Dubai.  

It is my personal goal to help you find your perfect vehicle, and I look forward to seeing the excitement that it brings!

Ryan McCaughna, Toyota Sales Consultant

I have been working in the automotive industry for the last 2 1/2 years.  I started at Grand Blanc Motorcars as the car porter, and soon found myself getting to know our customers by name and vehicle, as well as I learned a lot about the vehicles we sell, by being the person that stocked in the cars as they were delivered. I got involved with Sales because I enjoy meeting new people.  I, also, enjoy being around the automotive industry. 

I will do anything to make sure I get the customers business.  By that I mean I will work as hard as necessary to get my customer the best price, great service, and have an ongoing good relationship that will last through the years and through their next new vehicles.  As a Sales Consultant for Grand Blanc Toyota I feel confident that I am selling the best automotive product that I can. 

Jamie Willis, Toyota Sales Consultant

I graduated from Holly! I am still fairly new to car sales; but I absolutely love it and am very excited for my future here.

I have two boys, Cameron who is 1 and Chase who is 7. All of my free time is spent with them. We love outdoor activities, sports, and games. We are a very competitive bunch. I have been with their father for 9 years!

I would say one of my best qualities is building great personable relationships with my clients. I am a very trustworthy person which makes the sales process a lot smoother for customers and for myself.

Margaret Martin, Internet Coordinator

I have worked in the automotive dealership industry for over 20 years now. Here at Grand Blanc Motorcars for 5 years. Most of my time has been spent is the Accounting and Finance areas of the dealership and now I head the Internet Department. This new position has brought new challenges and excitement to both my professional and personal life.

When I am not working, I like to spend time with my very large family. This includes my parents, numerous brothers and sisters, tons of nieces and nephews and most importantly, my daughter. My daughter and I enjoy traveling and are able to visit quite a few places with the family spread across the USA. I also enjoy participating in the Crim Festival of Races held every year in downtown Flint, volunteering at the hospital, painting and enjoying the great outdoors.

I am very much a people person and Grand Blanc Motorcars has given me the opportunity to interact with people and help them with the purchase of a great BMW, Mercedes or Toyota.



George Rodriguez, Toyota Service Advisor

Andrea Miller, Mercedes-Benz Service Advisor

Chandra Landon, BMW Service Advisor

Peter Lindgren, Toyota Service Advisor


Business Office

Michele Lyden, Business Manager

I started in the business 15 years ago as a Receptionist and quickly moved up to the Finance Office, where I work to guide clients through an easy and enjoyable car-buying process.  When a client leaves my office excited about their new car, it is the highlight of my job.

When it comes to purchasing your vehicle, I make every effort to provide the best experience possible.  From offering the lowest interest rate available to making you knowledgeable of all of your options, my goal isn't to make a one-time sale; it's to make you a customer for life.

Outside of the office, my husband, Greg, our daughter and I enjoy family excursions to our cabin up north.  We also spend most of our free time with family and friends (entertaining one 4-year-old in particular, our daughter, Savanna!)

I look forward to seeing you at Grand Blanc Motorcars!  Please feel free to contact me with any questions or comments you may have!  

Bailey Bruyere, Asst. Business Manager
(810) 695-4400


BMW Genius/MB Product Concierge

Kayla Ragland, BMW Genius/MB Product Concierge



Dave Breece, MB/Sprinter Parts MGR

What I like about my job?  Definitely working around these beautiful, speedy, and advanced engineered cars.  It is a challenging yet very rewarding job.  The continuing development of Mercedes-Benz vehicles means my job will always be interesting.  

In my spare time, when I am not working at the dealership, I enjoy driving very Loud, and very old wooden boats and dirt bikes.  

I stand ready to provide you with our Genuine Mercedes-Benz parts, to protect and maintain the Mercedes-Benz vehicle that is important to you.  

Ed Kamatoy, BMW Parts Manager

Phil Preville, Toyota Parts Manager

Since breaking into the automotive industry in February of 2015, I have had nothing but great experiences. Through years of retail customer service it was imperative I treated every customer like I would want to be treated. This created a strong sense of honesty and integrity that I consider the best part of my character in and out of work. I always liked the phrase, "you have to take a leap of faith and the trust comes after." It is so important to me that I prove this to every customer that walks into the dealership. I have a feeling it will be critical to my success in the car industry because you know I will keep you informed without bias to help make the best decision possible.

Outside of work I like to spend time outdoors. My favorite activities are fishing and golfing. The thing I like most about fishing is flipping my canoe and chasing after my gear. Perhaps it's untying fly knots on the side of the river, while watching fish surface in front of me. It may be an act of contrition but I still enjoy it. I won't say much about golf because I'm not quite sure why I keep playing. It sure isn't the 18th hole that keeps me coming back!

Steve Gruehn, Parts Consultant



Ron Ruff, Digital Marketing Director

My name is Ron Ruff and I am the Digital Marketing Director. I graduated from Cleary University with a Bachelors degree in Business Management with a focus in Marketing and New Media in 2016. My goal is to help you as a consumer have an enjoyable and positive online shopping experience while on our website. Please feel free to reach out to me if you have any questions or concerns.