Chicago’s destination of choice for European Vehicle owners seeking true expert levels of service, repair, and performance tuning. Rennology Motor Sport is the number one safe and reliable alternate choice to the dealer. We combine honest, straightforward advice with technically advanced diagnostic and service skills. And yes, we perform work covered by your Extended Warranty. Click Performance Tuning for upgrades, tuning services, and performance parts for Audi, BMW, Mercedes, Porsche, & VW. Rennology Motor Sport Inc. is Chicago's Authoritative European Vehicle Specialists. more >>