49 Plymouth Special DeLuxe Club Coupe. It was my granddad's, and I kept it 30 years (drivable for most of that) before I decided to let it go and focus on the muscle era cars that just interested me more. That old 217 flathead six was the smoothest engine I've ever driven, almost electric motor smooth.
Loaded up and leaving my place for the last time in 2013:
I traded the Terraplane for the Plymouth. The Terraplane is in St. Louis as the only car in a pre-war truck collection of about 20 pickups. The Plymouth went to a guy in Dallas (he DROVE it to Dallas from OKC!), and I recently saw it on a dealer-flipper website, advertised for $31,500. The Plymouth was the last year of Plymouth truck production (until the Mitsubishi Plymouth Arrow in 1979). It had a '58 Plymouth flathead Six with a Clifford head and exhaust manifold and other trick '50s-era speed parts. A very cool truck.
I did about 50% of the work on the 'Plane. I got the car from a Hudson guy in Wichita, KS as a painted roller, with the engine and trans installed. I did the final assembly (glass, body, bumpers, interior trim, etc), finished the wiring and paint, shot the wheels and added the wide whites, and had the entire interior done locally. Both were wonderful driving vehicles.