Great knowledge of bmws. Super friendly and educates the owner. Honest and very fair.

He tried diagnosing my vehicle couldnt find out the problem so then it came my problem. I got charged $250 for a $175 starter. And then on top of that I asked him to drain the oil to look for shavings in the motor and he didnt have any oil to put back into it nor asked me if I had any (I did). Keep in mind I had my car towed 100 miles to get it looked at by him because of his ratings. So I had no diagnosis, no answers because of his poor diagnosis skills. And he wanted me to replace the motor with no warranty provided. And no real reason on why. I then overheard a call and he diagnosed another vehicle with a bad motor. The hilarious part was how he said he was trying to help ME. Dont ever bring your car here.

I drove my E36 M3 from Omaha, NE to Simpson Motorsport to have a TC Kline suspension put on the car, which Tim did quickly for a great rate. He even stayed a little late to finish up the job and explain how to adjust it. However, as I was leaving Iowa City to head back home, I was rear-ended. Not knowing where to go, I had the car towed back to Simpson Motorsport. Tim had already left, but out of sheer luck, Tim happened to return to the shop as I was getting ready to call a cab and find a hotel. He opened the shop back and put the car on a lift so we could see what kind of damage there was. Luckily, it was mostly cosmetic but there would be a few items that had to be addressed before the car could be driven back home. As it was already 9pm, Tim gave me a ride to my hotel that night. The next day, Tim spent the morning helping me get the car ready to drive back home. He really went above and beyond the call to help me.I 100% trust Simpson Motorsport with my cars. Tim and his father are very honest, as they try to get you the best pricing on all parts and labor. On top of that, they really know BMWs well so you know you are getting the best quality service. Even though it’s a 4 hour drive from Omaha, I will be bringing my pair of M3’s back to Simpson Motorsport whenever possible.

Simpson Motorsports is without a doubt the BEST place to have your BMW maintained, repaired, or performance modified. Jim Simpson (the owner) has over 30 years experience working EXCLUSIVELY on BMW autos. He and his son Tim Simpson provide extremely meticulous high quality service, which is performed at 30%-50% less than Iowa BMW Dealership prices. No Starbucks or Popcorn, but when you turn on to I-80 or I-380 youll be smiling ear-to-ear. Absolutely THE BEST BMW service in Iowa Period.

The guys at Simpson Motorsport know BMW and charge very fairly. After meeting with them and doing a once over on my e46, my ease of mind will be well worth an hour drive from Cedar Falls to get to their shop. They have gained a customer for the long haul.

Very nice and courteous service, he literally educates you on the pros and cons of different options and leave it to your wisdom, All i have done was a oil service so far for my BMW 328ixdrive and to be honest my car is performing a lot better compared to all the services i have done in BMW authorized showroom till now, his sound knowledge on BMWs are impeccable, this will be my place to go in future for all my BMW needs.

Jim and Tim are excellent BMW technicians who love the brand they service. Quality parts, superb service, fair pricing. There is no better place--certainly not regionally--to service a BMW!

If you own a BMW and need any upgrades or repairs including regular maintenance. Give Tim or Jim at Simpson Motorsports a call. I highly recommend them.

Although I am more of a DIY type, there are certain things that I am not comfortable tackling myself-like suspension work. Id been looking for an independent shop to work on my older BMW, and after a thorough search, decided to contact Simpson Motorsports. Although I live roughly 2 1/2 hours away from Iowa City, I decided to bring my car to them after an initial visit to their clean and well-organized facility. Jim and Tim were great to deal with and did an awesome job of explaining what my car needed and gave me a fair and honest estimate before undertaking the work. I couldnt be happier with the work Simpson Motorsports did on my car. I will be back.

Professional, clean, and very thorough. If you have an issue with your BMW, take it here.

Great place for BMW service