Remember that thread a while back when someone posted a vid of some supposed car vs. bike test? All the sportsbike crew said it was plain that the rider didn't know what he was doing, and that bikes are waaaay faster than cars, even on road courses....this article doesn't settle the matter, but gives good evidence of the speed potential of four wheels. Anyone else read the December issue of EVO magazine? There is a big section on car versus bike. The staff of Superbike magazine invited the staff of EVO magazine to a two part challenge, straightline acceleration, and lap times around the motorcycle configuration of Silverstone. They brought a Suzuki GSX-R-1000 and another GSX-R1000 with about $27,000 worth of mods done by Crescent Suzuki. The modified bike put out 180hp at the rear wheel, feature Ohlins suspension, aftermarket brakes, and was ridden by Aaron Slight and Niall MacKenzie. The cars were a Lamborghini Murcielago, Porsche 911 GT3, BMW M3 CSL, and a Radical SR3, all bone-stock and driven by some dude named Phil Bennett. Acceleration tests were no contest...the modified bike won all by a long shot. The Radical could just about keep up with the standard GSX-R up to 70mph, at which point the bike slowly started to pull away. I can post figures if anyone is curious. At the road course, the story was quite different. Everyone there admitted that the course gave a bit of advantage to the bikes, favoring acceleration over cornering grip. Laptimes were as follows: Crescent Suzuki- 1:05.4 Radical SR3- 1:05.6 Suzuki GSX-R- 1:09.0 Porsche GT3- 1:10.9 Lamborghini- 1:11.5 BMW M3- 1:12.0 Notes: The standard bike, Porsche, and Lambo were on standard high-performance road tires. The BMW was on some special Michelin that is very close to a cut racing slick. The modified bike and the Radical were on road-legal trackday rubber, the bike used tire warmers, the car did not. Radical makes a turbo version of this car which is considerably faster, but the comparison test above used the N/A version. Cliff Notes Challenge issued by the bikers. Former GP and Superbike riders, so no claims that of an amateur rider. Heavily modded bike owned all in straightline acceleration. Heavily modded bike and fastest car very close on a motorcycle road racing course, with the bike just a tiny bit faster.