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

engine Aluminum Alloy V8 e/Dry Sump Lubrication
position Mid Lonitudinal
aspiration Natural
valvetrain DOHC, 4 Valves per Cyl w/VVT
fuel feed FSI Direct Injection
displacement 4163 cc / 254.0 in³
bore 84.5 mm / 3.33 in
stroke 92.8 mm / 3.65 in
body / frame Magnesium & Aluminum Body over Aluminum Spaceframe
driven wheels Permanent Quattro 4WD w/Electronic Diffential Lock (EDL)
front brakes Ventilated Discs w/ABS, ASR
f brake size x 380 mm / x 15.0 in
rear brakes Ventilated Discs w/ABS, ASR
r brake size x 356 mm / x 14.0 in
steering Rack & Pinion w/Hydrualic Assist
f suspension Double Wishbones w/Audi Magnetorheological Dampers
r suspension Double Wishbones w/Audi Magnetorheological Dampers
curb weight 1560 kg / 3439 lbs
wheelbase 2650 mm / 104.3 in
length 4430 mm / 174.4 in
width 1900 mm / 74.8 in
height 1250 mm / 49.2 in
transmission 6-Speed Manual or 6-Speed R-Tronic
gear ratios :1