Ultima RS
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The Ultima RS is a mid-engined sports car produced by British automotive manufacturer Ultima Sports Ltd since 2021. The car can be bought as either a kit or fully-assembled. Buying the car as a self assembly package - without engine, transmission, or any factory options will cost £51,960. A complete LT5 or tuned LS3 car will cost circa £180,000 including 300 hours labour to build.
Ultima RSE Prototype
In 2023, Ultima would build an RS with the Electric motor from a Tesla, to develop a possible electric variant of the RS. The car was quick in comparison to the other variants of the RS. Ultima concluded that it would not enter production with an EV, especially with the news of internal combustion engine rules being gradually relaxed in multiple countries for low-volume car producers, and as such, it was sold to a private collector. The RSE would be fitted with numerous Carbon-fiber body panels, which would lead it to weigh 988 kg (2,178.2 lb), only 58 kg (127.9 lb) more than the standard car. The RSE would be tested by Ultima, and achieved 0-60mph in just 2.1 seconds, 0-100mph in 4.6 seconds, and doing 100-0mph in 3.1 seconds. It has a claimed range of 136.8 km (85 mi). The car would be offered for sale in April of 2025 on Collecting Cars.
Engines
| Name | Engine | Displacement | Horsepower | Torque | 0-60 Mph | 0-100 Mph | 30-70 Mph | 0-150 Mph | 0-100-0 Mph | Standing quarter mile | Top Speed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| RS-1200 | LT5 V8 Supercharged | 6,162 cubic centimetres (376.0 cu in) | 1,200 bhp (1,217 PS) | 969 N⋅m (715 lb⋅ft) @ 4,400 rpm | 2.3s | 4.8s | 1.5s | 8.9s | 8.7s | 9.2s @ 156 miles per hour (251 km/h) | 250 miles per hour (400 km/h)+ (Gearing Limited) |
| RS-1020 | LT4 V8 Supercharged | 1,020 bhp (1,034 PS) | 920 N⋅m (679 lb⋅ft) | 2.5s | 5.2s | 1.7s | 10.1s | 9.1s | 9.8s @ 144 miles per hour (232 km/h) | 210 miles per hour (340 km/h)+ (Gearing Limited) | |
| RS-700 | LT1 V8 | 700 bhp (710 PS) | 813 N⋅m (600 lb⋅ft) | 3.0s | 6.2s | 2.3s | 12.9s | 10.1s | 11.2s @ 127 miles per hour (204 km/h) | 180 miles per hour (290 km/h)+ | |
| RS-500 | LS3 V8 | 480 bhp (487 PS) | 610 N⋅m (450 lb⋅ft) | 3.3s | 6.6s | 2.5s | 13.6s | 10.5s | 11.6s @ 127 miles per hour (204 km/h) | ||
| RSE | Tesla based electric drive unit | N/A | 680 bhp (689 PS) | 1,000 N⋅m (738 lb⋅ft) | 2.1s | 4.6s | No Data | 7.7s | No Data |