Well, it depends a bit.
I've seen the price on SPG classic 900s go ever higher in the last few years and they are pretty nice cars to drive. It looks to have the very desireable dark grey interior. Inner drivers are $800 for a set so just having them done is a big plus. Of course, the transmissions are a source of trouble and even more so in the high output motors so with no mention of upgrades or condition I'd be worried. Then there's the color... umm, yeah.. red, black, heck even yellow or silver you can easily sell but that green, urp-excuse me a minute...
All told though, if you can get past the color and the paint is original, transmission is good, and so forth this is actually a pretty good deal lately.