Looking at buying the above A4 Quattro which has a 3.0, manual tranny, and 25,000 miles. Buying from a non Audi dealer but the car looks pretty nice. Assuming a mechanical inspection comes up clean, should I spend the money on a warranty? My last Audi was a 95 A6 and in 70,000 miles it needed only a drivers seat heating element and word has it the new A4s are better built yet. What would you current owners recommend?