I have been doing alot of research on these cars as I have been lusting after them for over a year. When/if my Subaru dies and my school loan is paid off, I am buying one.

Be careful of the front control arms. There was an issue with them on these cars. Also, like someone else said, ask about the timing belts. SOP is to replace the timing belts and water pump at the same time. Average is $1500 service.

The entire chassis on the A8 are made of aluminum. Never heard anything bad about the Quattro system. The A8 and S8 both have the aluminum 4.2L V8. The early A8 had about 310HP and the S8 were a little more sporty with a lowered suspension and same motor but tuned to 360HP.

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'85 300SD (formerly california emissions)
'08 Chevy Tahoe
'93 Ducati 900 SS
'79 Kawasaki KZ 650
'86 Kawasaki KX 250
'88 Kawasaki KDX200
'71 Hodaka Ace 100
'72 Triumph T100R