I bought my 850 used, the previous owner beat the crap out of it and I've been restoring it. My 850 lacks the turbo, it is a bit slow. However, the 5 cyl engine that Volvo used in this car is rock solid, it starts every time.
The car drives like a dream, it holds just about anything you can imagine, the MPG is nothing to write home about (avg 19.8 MPG). The gear shifter is a little notchy, requires a large throw. The odometer stopped working at 185k miles, but using the computer diag port, it's actually got 214k miles - the vehicle shows no sign of giving out - it just keeps going! The suspension and all wheel disc brakes give it a sporty edge, but the engine is under powered.
The climate control is a little weird, but it works well enough. The turning radius is crazy awesome, the brakes are great.
Wish the electronic seat was more reliable, wish the 5-speed manual came with a turbo.