Both the AUDI Q4 and the MERCEDES ML CLASS are tracked here from official DVLA licensing data, and as of 2026 Q2 there are 64,655 AUDI Q4s versus 37,118 MERCEDES ML CLASSs still on UK roads. That makes the MERCEDES ML CLASS the rarer of the two — there are about 1.7× as many AUDI Q4s left. Year on year their fortunes diverge: the AUDI Q4 is rising (+25.7%) while the MERCEDES ML CLASS is falling (-5.5%).
| AUDI Q4 | MERCEDES ML CLASS | |
|---|---|---|
| Left in the UK (2026 Q2) | 64,655 | 37,118 |
| Rarity tier | Common | Common |
| Licensed | 64,323 | 25,065 |
| SORN (off-road) | 332 | 12,053 |
| Peak | 64,655 (2026 Q2) | 65,761 (2015 Q3) |
| Year-on-year | ▲ 13,228 (+25.7%) yr/yr | ▼ 2,172 (-5.5%) yr/yr |
The MERCEDES ML CLASS is rarer: 37,118 are left in the UK as of 2026 Q2, compared with 64,655 of the AUDI Q4.
As of 2026 Q2 there are 64,655 AUDI Q4 and 37,118 MERCEDES ML CLASS still registered (taxed or SORN) in the UK, according to DVLA data.