Hi Guys
I've found this link - its' a few years old - but it says Audi recalled cars due to electrical faults causing fires!
http://www.roadandtrack.com/car-culture/a10250/audi-recalls-vehicles-for-wiring-problems/
And also, An Audi (although I don't know what model yet) caused the M5 to be closed on Sunday 3rd April as it burst into flames. Luckily no-one was hurt, the family managed to get out. Its on the BBC Hereford & Worcester's facebook page.