Now I have the following interesting tidbits [even for a non-car buff like me] to look out for, next time I watch the movies
1. '54 Packard Patrician that Michael gets into after the christening [I hadn't noticed Michael getting into a car after the christening]
2. Frank Pentangeli's '57 Cadillac Eldorado coupe; [presume during Michael's unannounced visit]
3. '58 Lincoln Connie that hit Willie Cicci in the shootout outside Richie's bar.

The car Carlo was garroted in, looked pretty ordinary in comparison! Wonder whether this particular car was sourced specifically for the occasion
Carlo even had someone pack a suitcase for him

Was the car being driven around the Corleone compound? It looked like the driver was steering even when the driver's side windscreen was shattering