Craig,

I'd get a W210 from 2000-2002...The bug-eyed look

All modern, no distributor cap to deal with. Wires... Mechanical injection, reverse seal on the automatic transmission, non-OBD, and wiring issues..

I have a W210 wagon- it is just gas it up and go...No BS....

I work on cars. I have four Mercedes-all running, and two with M104'. I rebuild transmissions. The second generation transmissions(2000 to 2002) on the W21O's are bullet proof. A W210 is a woman's car. Just watch for spilled drinks on the shifter...The little V6 M112 is a great little engine...

My woman drives mine all over, and modern. The shifts are silky smooth for those years. Tough car to beat for service and usage.

Do not be afraid of the SLS on these(124 or w210) cars, but do roll on ramps to look for this nasty rust that builds on the SLS fittings near in-front of differential on the uni-body of the car. Also, look for oily dips on the lower half of each rear shocks. Move up the springy coily plastic upper cover for each bottom rear shock for wet leaks
The ride height can be adjusted on these cars..To protect the SLS do a fluid exchange from the front, but then when you get any car change all the fluids, thermostat, overflow tank cap, coolant hoses, fuel filter, and raditaor petcock, so you have a solid reliable car...

Just change all the fluids on a timely bases..

MArtin