greenfoam has a very good point,
they are highperformance cars, not only in engine capactiy, but in braking/suspension/safety features
i think its also for intimidation, would you really try to escape in your little v6 if it were a typhoon?? well maybe if it were a Vl turbo running 20psi but thats a diffrent story (lol my idiot friend)
i agree divivans are slow... i passed one doing inexcess of 180km/h one night (call be a idiot but it was along time ago and i learnt my lesson)
by the time he turned round i was far gone... so yes, they do need these cars because its not dbout going 220km/h, its about getting to that speed quickly.... and with all the crap they fit to those cars (gps and adition crap like lights, radios) they significantly heavier than a stocky