hi brother just bought a focus rs , there seems to be a funny noise the very odd time.

the noise comes across as a whistle/like a firework launching!!

is anyone aware of this?there is only 15000 miles on the car and is standard.

Another thing is the drooning road noise from all round, sounds like a wheel bearing, is it knowen to be a noisy car?we are putting it down to cheap tyres(wanli's)!!!!!!!!!

Anyone know?