Both the MAZDA 6 and the MERCEDES CLA CLASS are tracked here from official DVLA licensing data, and as of 2026 Q2 there are 60,395 MAZDA 6s versus 111,655 MERCEDES CLA CLASSs still on UK roads. That makes the MAZDA 6 the rarer of the two — there are about 1.8× as many MERCEDES CLA CLASSs left. Year on year their fortunes diverge: the MAZDA 6 is falling (-8.1%) while the MERCEDES CLA CLASS is rising (+5.0%).
| MAZDA 6 | MERCEDES CLA CLASS | |
|---|---|---|
| Left in the UK (2026 Q2) | 60,395 | 111,655 |
| Rarity tier | Common | Common |
| Licensed | 50,111 | 109,127 |
| SORN (off-road) | 10,284 | 2,528 |
| Peak | 114,643 (2016 Q1) | 111,655 (2026 Q2) |
| Year-on-year | ▼ 5,345 (-8.1%) yr/yr | ▲ 5,267 (+5.0%) yr/yr |
The MAZDA 6 is rarer: 60,395 are left in the UK as of 2026 Q2, compared with 111,655 of the MERCEDES CLA CLASS.
As of 2026 Q2 there are 60,395 MAZDA 6 and 111,655 MERCEDES CLA CLASS still registered (taxed or SORN) in the UK, according to DVLA data.