No problems as yet.
This car is fast... and I mean seriously fast as standard, soup this car up and it will be strong enough to take your life. handling is excellent and with 17" wheels and good tyres will just smile and wink at corners as it flies through, dash & interior not great, due to the rally style weight elimination, but you just don't notice it too much, due to the pure fun of driving this car. golf gti, s and most other hot hatches cannot compete with the pure bullet power and acceleration, good for 150 mph on a standard rallye.
I have to agree the 306 Rallye is lightening on wheels I have a mint one which I bought just over a year ago and I love it as much as my 106 Rallye which I still have. So they're not brilliant on the inside, but you don't see that when your throwing them round twisty roads. Pure heaven!!
150mph, try 134 recorded speed.
Maybe on GPS, but the speedo would or should show the equivelant to 150mph because they always overrread.