We are justifiably proud of our staff of Technicians and front office personnel.
 .......Bob Tunnell - President & General Manager
 .......Jim Leithauser - Chief Technician & Shop Manager
....... Austin Griffith - Technician
        Patty Tunnell - Front Desk & (who are we kidding... she's The Real Boss)
        Bill Cray - Service Writer (a.k.a. The New Guy)
  ........(click on any name to learn more about them)

Bob Tunnell - President & General Manager

Bob manages the day-to-day business operations of the Bimmer Haus Performance Group and serves as a consultant on all racecar prep and development.

Bob's first foray into professional motorsports was as General Manager of Seattle International Raceway in the early 1980's overseeing all facility operations and promoting NHRA and AMA events.

He continued to promote Indy Car, IMSA, and NASCAR races in the Seattle and Portland markets before joining Warren Miller Films as Associate Producer on 10 feature-length films and Executive Producer of more than 50 nationally syndicated television shows (including 5 about auto racing). Bob also served as General Manager of Warren Miller Entertainment overseeing all day-to-day operations prior to the company's acquisition by Times-Mirror Magazines and ultimately AOL.

Over the years Bob has performed stunt and high-performance driving sequences for feature films and television shows and appeared in several national and regional television and newspaper automotive ad campaigns. He has also taught high performance driving, vehicle evaluation, and corporate motivational programs for nearly a dozen European, Asian, and North American automotive manufacturers.

As a competitor, Bob has won 12 Solo II and ProSolo National Championships. (His wife, Patty, has also won 17 National Championships!) He is a graduate of the Jim Russell and SCCA Competition Driving Schools and holds numerous road racing track records in Showroom Stock and Touring class cars.

Bob also serves on the Board of Directors of Sozo International, a humanitarian aid NGO serving critically poor and disadvantaged people in Afghanistan. In recent years Bob has made 21 trips to Afghanistan to provide emergency aid and long term developmental support in a refugee camp called Barek Aub north of Kabul. Bob's wife, Patty, is also involved in the work in Barek Aub and has traveled there 11 times with him. They both have plans to go back again in 2018.

In his spare time (those rare weekends not spent racing or traveling) Bob enjoys outdoor activities like golf, scuba diving, golf, heli-skiing, more golf, and hiking with Patty. And then maybe a little more golf.

Although he denies being a "collector," Bob currently owns ten BMWs: a 1995 M3, 2001 740iL (daily driver), 1996 740iL, 1995 525i, 2005 325Xi, another 2005 325Xi, yet another 2005 325Xi, a 2003 330Xi, a 1994 325i, a 2003 M3, and has built the 1995 M3 into an E-Modified autocrossing monster into which the guys have dropped an LS3 V8. In the past he has also owned a 2002 M3, a 1994 325i, 1994 325is, 1997 M3 sedan, 1998 328iC, 1991 318is, two 1989 325ix's, a 2002 330i, a 1988 525i, and a 1990 M3.

back to top

Jim Leithauser -- Senior Technician and Shop Manager

Jim serves as our Chief Technician performing general service and repairs, and also oversees all of our high performance projects and race car fabrication and prep work.

After majoring in Mechanical Engineering at the University of Kentucky, Jim began his automotive career at an independent BMW/Porsche/Audi repair facility more than 25 years ago. Certified as an ASE Master Technician, Jim soon opened a repair and restoration facility of his own specializing in BMW and Porsche automobiles.

He was recruited in the early 90's to become the new Technical Manager for the SCCA'S Club Racing program where he helped develop the rules package for the conversion of Showroom Stock racing to the current Touring rules structure.

Jim left the SCCA in early 2000 to take over as Sales Manager for the joint venture startup between TC Kline Racing and Tri-Point Engineering, ProPartsUSA. He also served as Manager of the Koni Rebuild Center, one of only three factory authorized Koni shock and strut rebuild centers in the country.

Jim's competitive career began in the mid 70's where he won 9 trophies at the Solo II and ProSolo National Championships, but he had to put driving on hold when he went to work for the SCCA in 1993. But he didn't have to put his vehicle development skills on hold and he continued to design and prepare winning race cars culminating in Bob Endicott's win -- in Jim's ITA car -- at the American Road Race of Champions at Road Atlanta in 1999.

Since leaving the SCCA Jim has continued his racing career and won the SSB National Points Championship in the SCCA'S Rocky Mountain Division in 2001, 2002, and 2003 as well as winning a Club Racing National Championship at the 2004 SCCA Runoffs in SSB in a BMW Z4.

When asked what he likes to do in his spare time, Jim replied: "Work!" ....(I guess it beats getting trounced by his daughter at the go-kart track. <g>)

Jim's daily driver is a gorgeous 2007 Z4 3.0 Coupe and he also currently owns another Z4 3.0 Coupe that he's built into a competitive T3 racecar. In the past his stable held a 1988 325ix, 1998 Z3, 1999 M3, 1998 M3 sedan, and a gorgeous 2003 Z4 2.5 that he built into that National Championship-winning track racer.

back to top

Austin Griffith - Technician

Austin joined the Bimmer Haus staff in May 2017.  Although he's relatively "new" to us, he's definitely not new to BMWs by any stretch… he’s a fully certified BMW Level One Elite Master Technician.  He’s even certified to work on your Land Rover or Rolls Royce Phantom when it needs service or repairs.

In his off hours Austin is a serious mountain biker and video gamer.  And by “video gamer” I don’t mean he likes Pac-Man and Super Mario… I’m talking Massive Multiplayer Online Role Playing Games like Gears Of War 4 using giant curved screen Twisted Nematic monitors with super low input lag time, a 240hz refresh rate, and 1 millisecond pixel response.  Sheldon Cooper from Big Bang Theory wouldn’t last 10 seconds against him.

Austin’s garage currently houses a 2006 Land Rover LR3 HSE (which he is setting up for rock crawling) as well as a sweet 2017 Harley Street Glide S.  But check back frequently because he changes his vehicles about as often as I change my shirt.

And in his spare time – when he’s not plotting to annihilate Locust hordes or crushing The Trestle at Winter Park – Austin loves hanging out with his wife Jackie and adorable baby girl Mila.

back to top

Patty Tunnell - Front Desk, Bookkeeper, Controller, a.k.a. "SWMBO"

Patty has been co-owner with husband, Bob, since Bimmer Haus opened its doors in 2001. Until recently she has remained behind the scenes quietly handling marketing and customer satisfaction duties in her spare time while managing a successful dental practice in Boulder. When her former boss retired, Patty began filling in at the BHP front desk a couple days a week while Pat was taking classes.

Although Patty is a new face to the Bimmer Haus office, she is no stranger to the motorsports world. Patty is a 17-time National Champion in SCCA Solo and ProSolo competition and has been awarded the prestigious SCCA Solo Driver of Eminence and Spirit of the Sport Awards and is the only driver, male or female, in SCCA Solo history to win National Championships in 5 different racing categories.

For the record, I taught Patty how to drive when she was 15 so she couldn't have done it without me! (That's my story and I'm sticking to it. ;)

Seriously... Patty brings a lifetime of experience not only in motorsports but also in the business world having achieved success as one of the nation's top skip tracer/collectors for a major Fortune 500 company and coordinated world-wide travel and film and television distribution for a top independent filmmaker.

In recent years Patty has made 11 trips to Afghanistan with husband Bob to provide emergency aid and long term developmental support in a refugee camp called Barek Aub north of Kabul and has plans to go back again in 2018. She also actively serves at Flatirons Church and supports several local non-profit organizations.

In those rare moments when not working, racing, or traveling, Patty is a highly competitive racquetball player. She will tell you that she's not "competitive," but the guys at the racquet club will tell you otherwise. She also enjoys hiking in the foothills all around Boulder with her girlfriends.

Patty brings a new level of customer service to the BHP front desk with a smile and spiritied attitude that's second to none. (Yes, I'm biased... but it's still true.)

back to top

Bill Cray, Service Writer (a.k.a. The New Guy)

Yes, Bill has taken Pat's place as The Official New Guy.

Bill is the smiling face you’ll see at the front desk when you walk into the door at Bimmer Haus.

Bill may be the newest addition to the staff, but his name is highly recognizable throughout the Front Range as a BMW guy having served for 12 years as a Senior Service Advisor at Gebhardt BMW in Boulder and most recently as Service Manager at Green Eyed Motors also in Boulder. Bill’s heart and soul yearned to once again work with BMW owners and we are thrilled to welcome him to our Bimmer Haus family.

Bill and his wife, Krissy, love to travel with their two kids and Catahoula Hound (is that the coolest breed name ever?) making the most of their time in the Colorado outdoors hiking, biking, skiing, snow shoeing, camping, sampling craft brews, and hard core relaxing at their favorite pools and beaches. And when at home, Bill loves to cook... and says he’s never met a recipe he didn’t like.

Bill and Krissy currently own two BMWs: an E46 330Xi and E70 X5 3.0 in addition to a not-so-mildly modified 2004 Jeep Wrangler Unlimited, their go-to back country mode of travel.

There's no doubt that Pat Pallotto set a very high standard for service writing at Bimmer Haus and will be sorely missed, but Bill brings a level of service writing expertise and a welcoming smile that is sure to win everyone over!

back to top