Having a tear up with a bike in a quick car is always amusing , bikers are fucking terrible loosers, get all stressed and pretend that they wern't really trying anyway end of the day, bikes are fucking fast, I had my licence 7 yrs now, but in anything other that perfect conditions, ie dry warm and smooth roads a good driver in a fast car will whip most good bikers, although chasing a well ridden bike is very hard work- And bear in mind most 600cc bikes are easier to ride faster than 1000's etc