[G450X]

'74 914 2.0: Sounds like a good example, but more details on the exterior/interior condition (and rust/previous crash damage) and originality are needed. These are nice driving little cars.

If the paint & interior are very good (either original or original quality respray/reupholstered), and the engine has been rebuilt (most 2.0's don't see 140k miles without some work) in the last few years $10k is a good starting point. Silver and black, while not really rare, is a nice combo IMO, no +/- either way. The engine condition is not as important as in a 911 (way less to rebuild).

'72 911T targa: IMO $28k is a bit too much. Much of the '72 sought after status revolves around the single year oil tank in the rear QP, and I feel the coupe is worth a bit more (even more than normal in a '72) than a targa. I won't touch the targa versus coupe debate, the resale values speak for themselves. Sepia is another detractor (IMO), while I prefer it over red (or white), I think in general it's a slight "minus," whereas (for example) viper green would be considered a "plus." Being a "T" does not help matters, being the most common 911 variant. The lack of the stock MFI is not as important on a "T" as on an E or S, but originality nuts don't like it being absent.

If the exterior/interior/engine are in very good condition, (no rust or previous crash damage) I'd say $20k - $24k. T values are slightly devalued since you can still find good E's (buy them now!) in the $25 to $30k range (if you're patient), and they have a much better appreciation potential. If I had a '72 viper coupe in good condition, I'd probably ask at least $30k though! I kick myself for passing on a nice '71 E coupe last year that sold in the low $20k range.