Actually the top gear vid is crap. Clarksons show has been notorious for stretching the truth on anything from car vs. bike or train or plane or whatever. Soon after that aired, Fastbikes magazine actually did a similar test as a call out to clarkson using not just the r1 and 911, but a few other fast bikes and cars as well. Pro car drivers, who did anything but hold back, gave it all in the cars while the fastbikes boys rode the bikes. Bikes were faster considerably. But this was years ago. Technology for both bikes and their tires have jumped considerably. Here's the last page from a test done a few years ago between fastbikes magazine and EVO (car mag) with a good selection of fast exotics against a stock '03 GSXR 1k and a crescent tuned GSXR 1k against a Radical SR3 Tracksport. All vehicals were pro driven and put to their best. The Stock 1k beat the street exotics and the Tuned crescent (which is a street legal BSB spec bike) beat the radical in lap times:
http://star.walagata.com/w/gamingalien9/1708409-potentialmillionairec.jpg
5th gear (a show that isn't as biased towards cars as Top Gear) does a few car vs. bike runs now and then too. Most recent was between a improved gallardo and Ducati 1098. Car won in braking but lost everywhere else...with the bike toying with him on the course too:
http://www.youtube.com/watch?v=N6_0pOa4fC4
I've seen just about every car vs. bike test in the last decade (got quite a few saved) and 9 times out of 10 it's the bike that wins. Sometimes by 1 second and sometimes by as much as 10. Sportbikes DO generate over 1 g in cornering and while their contact patch isn't car sized, thanks to advanced tire technology it is sticky and does have a bike hold it's line at very high speeds. All about the rider ability though. While cars obviously carry more cornering g's, a bike can take the shortest path thru the curve. And yes sports cars can brake later and in less distance then most bikes though not by too much. Keep in mind the bike is usually approaching the corner 40mph faster then the said street car.
Now obviously when you compare F1 or GT cars of course they're faster. How could they NOT be with all that money and tech behind them? Any lesser race cars though you can find varying leagues of bikes posting similar or quicker times. Not to mention lap records for bikes are getting shaved off year by year as their technology continues to evolve. However, how many toyota GT's or F1 cars do we see on public roads or highways? Next to ZILCH. However it is easier to drive a good sports car or exotic thru the curves fast whereas with a bike, it takes skill. Which is rare to find but when a good car driver in a great car meets a great rider on a stock bike, it's not pretty for the car. Especially since your not on a racetrack but a road where your stuck to one lane which is plenty of room for the bike....the car can't afford to slide out or make mistakes though. Bikes slip around traffic pretty easy whereas one car on a twisty backroad will usually make any sports car driver slow down until they can safely pass. That last advantage for the bike alone is worth more then all the cornering g's or brakes in the world.
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