Wobbles the Mind did this earlier, so I might as well give it a try myself.
10 - TVR
If Porsche had a bigger imagination, a smaller budget and tried to kill you more.
9 - Peugeot
Used to be the king of rallies, though until recently they were flatlining.
I8 - Subaru
Also used to be king of rallies, except they’re doing a bit better right now.
7 - Volvo
Bricks with attitude. Subtle cars that manage to both safe and classy.
6 - Jaguar
“I drive a Jaaag” sounds forever cool. As do V8s and V12s, ignore that repair bill.
5 - Alfa Romeo
Had their ups and downs, but you can’t say no to an Alfa.
4 - Saab
One of the few brands that always innovated, even if it didn’t go their way.
3 - Lancia
All that is good and bad about Alfa Romeo multiplied by a million. Also rallies.
2 - BMW
Losing identity now, but they still make the ultimate driving machine.
Now for some honourable mentions:
Porsche, Toyota, Honda, Nissan, Mercedes Benz, Maserati, Land Rover, Suzuki, DeTomaso, Citroën, Matra, Lotus, Aston Martin, Mitsubishi, Holden and Dodge.
1 - Mazda
Ambitious tech, huge variety and one of the best current lineups.