I might have to wait until I get home to my NAS drive! That's a big call when you've had over 30 cars.. I have about 10 that I was very fond of for different reasons, but hard to pick a number one.
Very fond of all of these for different reasons.. in order of ownership.
Fiat 128 3P
Renault 12 Virage 1.4
1991 Nissan Pulsar SSS
1993 Nissan Bluebird SSS
1998 Nissan Pulsar Plus sedan
2006 Hyundai Getz 1.6 Manual
2008 Hyundai i30 CRDi
2012 Toyota Camry Hybrid
2014 Holden Calais V
2018 Hyundai i30 SR
I think the SSS Pulsar was my favourite until I got the I30 CRDi in 2008, maybe outshone by the Calais but will the new SR beat them all (time will tell)