CATERHAM · CATERHAM 21 · Cars
CATERHAM 21 Ultra-rare
As of 2025 Q4, 27 CATERHAM 21s remain registered in the UK — one of the rarest cars in Britain on today's roads. That's down from a peak of 32 in 2015 Q2 — only 84% of the high-water mark, a loss of about 5 cars. Numbers have held broadly steady over recent years rather than falling away — often the mark of a model that owners deliberately preserve. In all, the CATERHAM 21 is rarer than 71% of the 2,408 UK car models we track, putting it firmly in 2025's endangered class.
Survivors over time
How rare is it?
Genuinely rare — only 27 left on UK roads.
Rarer than 71% of the 2,408 UK car models we track.
Trend
About the 21
Caterham Cars Ltd. is a British manufacturer of specialist lightweight sports cars established in Caterham, England, with their headquarters in Dartford, England. Their current model, the Caterham 7 (or Seven), originally launched in 1973, is a direct evolution of the Series 3 Lotus Seven designed by Colin Chapman. In the 1990s the company made the Caterham 21, a two-seater soft top alternative to the MG F and Lotus Elise, (which both sold many more units). A track-only car, the SP/300.R, a joint project with Lola was released for customer testing in 2010 and was scheduled for release in 2013....
CATERHAM 21 — questions & answers
How many CATERHAM 21 are left in the UK?
As of 2025 Q4, 27 CATERHAM 21 were still registered in the UK — 6 licensed and on the road, plus 21 declared SORN (off-road). The figures come from official DVLA vehicle licensing data.
Is the CATERHAM 21 rare?
The CATERHAM 21 is genuinely rare, with only 27 left, making it rarer than 71% of the 2,408 UK car models we track.
Is the CATERHAM 21 increasing or decreasing?
Over the last year the number of CATERHAM 21 on UK roads held steady.
What fuel do most CATERHAM 21 use?
Most CATERHAM 21 run on petrol — about 100% of those still registered.
When did the CATERHAM 21 peak?
The CATERHAM 21 peaked at 32 registered in 2015 Q2, and was first recorded in the data in 2014 Q3.