I'm a VERY late braker for corners, being bought up RWD, so quite happy for the car to arrive sideways
If I was in an Escort, I would have even provoked with a flick to make sure it did.
So I have massive weight transfer off my rear wheels when turning. ( I know its not the way to drive FWD fast, slow in fast out blah blah blah..)
Hence I tend to get the rear end breaking traction if I'm pushing it hard. (I spun at around 70mph at my first trackday)
Even without the late breaking, a FRP will happily loose the rear end on a damp road, however good the tyres and suspension bushes.
Mines nowhere near as prone to that any more.
The spoiler is definitely NOT fitted for looks..Its there for a reason, like the LSD I fitted, strut brace, shift lights and nitrous.
All to make the car faster and more stable in and out of a corner.
Pay your money at RS day and sit in my passenger seat for a few laps, (£10 I think) I'm already paid up for open pit track time. (bring a crash helmet too)