Layout    
Rear-engine, rear-wheel-drive

Engine    
633 cc Tipo 100 OHV I4
767 cc Tipo 100 OHV I4
843 cc Tipo 100 R7.038 OHV I4 (600S)

Transmission    
4-speed manual

Dimensions
Wheelbase    
2,000 mm (78.7 in)
Length    
3,215 mm (126.6 in)
Width    
1,380 mm (54.3 in)
Height    
1,405 mm (55.3 in)
Kerb weight    
585 kg (1,290 lb)

Fiat 600 on Wikipedia

MORE SPECS WILL BE HERE SOON