Viva HA (1963-1966)
- Engine: 1.0L straight-four
- Power: 44 hp (33 kW)
- Transmission: 4-speed manual
- Top Speed: Approx. 75 mph (121 km/h)
- Curb Weight: Approx. 1,700 lbs (771 kg)
Viva HB (1966-1970)
- Engine: 1.2L straight-four
- Power: 60 hp (45 kW)
- Transmission: 4-speed manual
- Top Speed: Approx. 85 mph (137 km/h)
- Curb Weight: Approx. 1,900 lbs (862 kg)
Viva HC (1970-1979)
- Engine: 1.3L straight-four
- Power: 67 hp (50 kW)
- Transmission: 4-speed manual, optional 3-speed automatic
- Top Speed: Approx. 89 mph (143 km/h)
- Curb Weight: Approx. 2,050 lbs (930 kg)
Viva HE (1979-1981)
- Engine: 1.3L straight-four
- Power: 72 hp (54 kW)
- Transmission: 4-speed manual, optional 3-speed automatic
- Top Speed: Approx. 93 mph (150 km/h)
- Curb Weight: Approx. 2,110 lbs (957 kg)
_These specifications are for reference only and actual values may vary based on country, production year, and vehicle configuration._