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UnicornSports car · 1994–1999 · United Kingdom

Caterham 21

The rare, curvaceous roadster that brought Seven-style thrills to a more civilised format.

Power
151 bhp
0–60 mph
5.5 s
Top speed
130 mph
Est. value
$22k–$35k

About the Caterham 21

Launched to celebrate Caterham's 21st anniversary, the 21 was a bold attempt to offer a more practical, weather-proof alternative to the legendary Seven. It utilised a modified Seven spaceframe chassis but featured a flowing GRP body inspired by the 1950s Lotus Eleven. The 1.8 VVC variant used Rover's Variable Valve Control engine, providing a broader power band than the standard K-Series units. Despite its agility and performance, the 21 struggled commercially following the arrival of the more advanced Lotus Elise, resulting in a production run of fewer than 50 cars. Today, it is a highly sought-after rarity for collectors who appreciate its unique blend of raw Caterham dynamics and classic roadster aesthetics.

Caterham 21 specs

The Caterham 21 produces 151 bhp (113 kW) and 174 Nm (128 lb-ft) of torque. It reaches 60 mph in 5.5 seconds and has a top speed of 130 mph (210 km/h).

Overview
MakeCaterham
Model21
Trim1.8 VVC
Years1994–1999
TypeSports car
Body styleRoadster
CountryUnited Kingdom
ProductionAbout 48 built
Performance
Engine1.8-litre Rover K-Series VVC inline-four
Displacement1,796 cc (1.8 litres)
InductionNaturally aspirated
Power151 bhp (113 kW) at 7,000 rpm
Torque174 Nm (128 lb-ft)
Redline7,200 rpm
0–60 mph5.5 s
Top speed130 mph (210 km/h)
Transmission6-speed manual
DrivetrainRear-wheel drive
Weight650 kg (1,433 lb)
Power-to-weight232 bhp per tonne

Typical figures for the standard car; options, markets and model years vary. Where our specs come from

How much is a Caterham 21 worth?

A typical Caterham 21 is estimated to be worth $22,000 – $35,000 (about £16,000 – £26,000).

Values are directional estimates for a typical example, not appraisals. Condition, mileage, history and specification all change what a real car is worth. Pound figures use the exchange rate of 3 November 2026. How values are estimated

Caterham 21 rarity in CarSpot

The Caterham 21 is a Unicorn card in CarSpot, with a rarity score of 100 out of 100. The rarest tier: hypercars, one-offs and cars built in tiny numbers, typically fewer than about 500. A Unicorn card is worth 320 XP.

Each model's tier starts from a 0–100 score based on its value plus its power or production numbers. Once enough players have spotted a model, how often it is spotted can move it up or down one tier. How CarSpot rarity works

Rarity is a collectible game mechanic, not an assessment of real-world scarcity or value.

Caterham 21 fun facts

  • The Caterham 21's rear light clusters were sourced from the first-generation Ford Mondeo, while the door mirrors came from the Rover 200.
  • To save weight and complexity, the 21 did not have wind-up windows; instead, the glass panels had to be manually demounted and stowed in the boot.
  • The car was originally unveiled at the 1994 British Motor Show with a polished aluminium body, though production cars used glass-reinforced plastic (GRP).

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