Chevys are a close second. Every other Big Three division is extremely underrepresented. a couple Plymouths, a couple Buicks, a couple Dodges, a handful o'Ponchos.
The '58 Belvedere and '55 Chevy Bel Air Sedan also have operable (poseable) steering.With a little work, the following kits can be made with poseable steering:
'67 Impala SS, '62 Impala SS and Belair kits, the '62 Catalinas, the '61 (former Lindberg) Impalas, '57 Chrysler 300C and the new tool '57 Bel Air.