1991 850i

You could probably sell that 850i for a profit and buy both a 635i and a 560sec

Just get an E31 V8

the 850 is a money pit and auto is gay.

560SEC
i think

Sell for more than $8000?

Don't they share a lot of parts with the same gen 5 series? I remember reading that the brakes are the same as the 540i of the same year etc