2007 Audi APR8

For some it’s largely about appearance. For others, it’s about helping a great car reach its full performance potential. The obsessive engineers at APR Tuned fit squarely into the later school. In fact, their own Web site states that ”if it doesn’t make your vehicle perform better, stop quicker, turn flatter, and more fun, we don’t have it.” Of course, when APR got its hands on the new Audi R8, it was already the fastest production car Audi had ever made, so APR knew it would have to dig deep to develop the engineering required to make the R8 perform even better.

One easy decision was to choose Michelin tires. APR prides itself in maintaining total control over all aspects of vehicle tuning and drivability factors, and it knew of only one tire company that shared its obsessive dedication to every detail of performance. The Michelin Pilot Sport PS2 uber Audi: an uncompromising combination of high-speed performance and everyday drivability.

In Detail

engineAluminum Alloy V8 e/Dry Sump Lubrication
positionMid Lonitudinal
valvetrainDOHC, 4 Valves per Cyl w/VVT
fuel feedFSI Direct Injection
displacement4163 cc / 254.0 in³
bore84.5 mm / 3.33 in
stroke92.8 mm / 3.65 in
body / frameMagnesium & Aluminum Body over Aluminum Spaceframe
driven wheelsPermanent Quattro 4WD w/Electronic Diffential Lock (EDL)
front brakesVentilated Discs w/ABS, ASR
f brake sizex 380 mm / x 15.0 in
rear brakesVentilated Discs w/ABS, ASR
r brake sizex 356 mm / x 14.0 in
steeringRack & Pinion w/Hydrualic Assist
f suspensionDouble Wishbones w/Audi Magnetorheological Dampers
r suspensionDouble Wishbones w/Audi Magnetorheological Dampers
curb weight1560 kg / 3439 lbs
wheelbase2650 mm / 104.3 in
length4430 mm / 174.4 in
width1900 mm / 74.8 in
height1250 mm / 49.2 in
transmission6-Speed Manual or 6-Speed R-Tronic
gear ratios:1