Its a great car when is working properly, but if they go wrong they are an absolute pain to work on, the engine bay has almost no space.

But if you get one that runs fine and can maintain it well I think they are great, plus if you choose to build it up they can be ridiculously fast.

Better buy sooner than later since the prices have been going up. Most important thing about buying a car like that is service history and either the lack of mods or build sheets for the mods done to the car. You don't want to invest in something that was thrown together buy someone using cheap parts.

I had a 280 a while back, setup for drift with a 5.7l swap. Just make sure its running right.

Edit: Put some 19s on it, maybe a small spoiler, if you're really down put some larger turbos on it and definitely upgrade your intercooler.