Dan (Ekona) will quote chapter and verse regarding this, not a lot he doesn't know about consumer rights and regs. PM himIf he doesn't respond here.
Sent from my Zed using Nangkang tyres front, RE040's rear
Cheers Graham
No such thing as a statutory three month warranty, and there never has been. The new CRA does alter things slightly in the favour of the buyer in this case though, the main one being that you have the right to immediate refund if the car develops a fault within the first 30 days. You do, however, have to prove the fault was there at the time of sale. Now, given it happened on the way home from the dealer that should be simple to prove, assuming you haven't signed paperwork to the contrary.
You probably don't even want a refund at this point, just a working car. However, you should keep this info handy as the garage now only gets one chance to repair, so if they **** that up then you can go for them twice.