Everybody accepts that if you own a high performance car, you can expect to pay a significantly higher premium when compared with someone owning a more standard car.
Their powerful engines and the speeds they are capable of reaching, make it statistically more probable that those drivers will be involved in an accident(s) with inflated settlement costs for the insurance company.
This becomes even more probable if younger or inexperienced drivers are involved. This may seem a bit generalistic, tarring all young and inexperienced drivers with the same brush (so to speak), but that’s the way insurers see it. The only way these people can expect reduce their premiums for these high performance cars is by avoiding any accidents/claims or convictions as time goes by.
A purpose built high performance car is likely to be easier and indeed cheaper to insure than one that has been modifed. It is no good simply putting a bigger engine into the car unless you modify other parts of the vehicle such as the suspension, wheels braking systems. It may be unsafe if the rest of the vehicle can’t safely cope with the higher performing engine.
If you are one of those people that intends to own high performance vehicles, it is certainly worth considering taking some kind of advanced driving course, for example from the Institute of Advanced Motorists. This may earn you a discount from your insurer