I drove/drive an 850 Turbo.
Great car. it's been bulletproof.
Quite a bit of power to the front wheels, you'll go through a lot of tires if you go for a turbo or an R. understeers quite readily though. Suspension is a bit stiffer on the R (fixes the turbos issue with that), or just get some coils.
If you can find an R that isn't beaten to shit for the right price (there have been quite a few on the market that look good), but if not I'd recommend a turbo. With the money you save you could put in a few mods and have something better than an R. They make great sleepers.
Also mentioning the fact that these cars are loaded with just about every feature you could every ask for....AND you can get a manual trans. swap done fairly cheaply :)