I like these cars and classes we have run. I have plenty without adding new classes but might add a new 1/32 car.
SlotIt Group C
Ferrari 312, Porsche 908/3, Abarth2002 Targa Florio 2021 series
Racer Sideways Grp. 5 Capri and others from covid proxy year
RevoSlot 1/32 Trans am Alfa GTA
ThunderSlot Lola T70 and McLaren Elva Mk.1 early CanAm
NSR Formula 22
RevoSlot GT2 911
NSR 917/10K for rally or big track
NSR Formula 86/89
CanAm SlotIt McLaren M8D
NSR Porsche 917/10K (rally tested)
NSR Corvette C7.R and other in that class
ABARTH S2000 and Abarth 500 NSR rally not so much