What TX said; regular maintenance and not driving like a
head will make the engine and trans last much longer, things that cause irregular wear are engine breaking (premature clutch failure), and make sure to fill your engine oil a quart above full. (6.5 quarts) and try to avoid long sloping right hand turns at high RPMS (oil starvation on rod bearings 1 and 2 (or was it 5 and 6?)
Either way, even though my car was cobbled together from 3 different SVT's (mechanically speaking) its been super reliable, probably the most reliable car I have ever owned, does it make a couple of noises? Yes the suspension clunks a little, but that also would be regular maitnence, I need a new suspension.