Both the BMW Z4 and the FORD KA+ are tracked here from official DVLA licensing data, and as of 2026 Q2 there are 37,053 BMW Z4s versus 36,585 FORD KA+s still on UK roads. The FORD KA+ is marginally rarer, but the two are closely matched on survivor numbers. Both are falling year on year (BMW Z4 -0.8%, FORD KA+ -0.8%).
| BMW Z4 | FORD KA+ | |
|---|---|---|
| Left in the UK (2026 Q2) | 37,053 | 36,585 |
| Rarity tier | Common | Common |
| Licensed | 31,382 | 36,269 |
| SORN (off-road) | 5,671 | 316 |
| Peak | 37,480 (2023 Q2) | 37,387 (2019 Q4) |
| Year-on-year | ▼ 307 (-0.8%) yr/yr | ▼ 286 (-0.8%) yr/yr |
The FORD KA+ is rarer: 36,585 are left in the UK as of 2026 Q2, compared with 37,053 of the BMW Z4.
As of 2026 Q2 there are 37,053 BMW Z4 and 36,585 FORD KA+ still registered (taxed or SORN) in the UK, according to DVLA data.