Mercedes-Benz GLC vs XPENG G6

The Mercedes-Benz GLC costs £21,110 more than the XPENG G6. For that premium it adds 112 miles more WLTP range and 142 kW more power. The XPENG G6 is not just cheaper - it also offers 52 kW faster peak rapid charging and 51 litres more boot space. On EVcarsguide's combined category scores, the XPENG G6 comes out ahead overall.

The XPENG G6 is £21,110 cheaper to buy. Running costs are almost identical - about £176 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the XPENG G6 comes out roughly £21,030 cheaper overall. These figures cover list price and home charging only - insurance, servicing, tyres and depreciation will move the real total.

EVcarsguide estimates a real-world motorway range of about 297 miles for the Mercedes-Benz GLC and 193 miles for the XPENG G6 - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Mercedes-Benz GLC goes roughly 104 miles further between charging stops. A rapid charge to 80% takes around 22 minutes in the Mercedes-Benz GLC and 12 in the XPENG G6, so the XPENG G6 loses less time at each stop. So the Mercedes-Benz GLC stops less often while the XPENG G6 stops for less time - pick on which you would rather do.

The two are within 7 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 487 mm of total clearance for the Mercedes-Benz GLC and about 480 mm of total clearance for the XPENG G6. The XPENG G6 also turns in a 0.5 m tighter circle, which helps with U-turns and multi-storey ramps.

Over a 8-year ownership window EVcarsguide's degradation model projects roughly 84% battery health for the Mercedes-Benz GLC and 90% for the XPENG G6. That gives the XPENG G6 a modest edge in retained real-world range. The XPENG G6's LFP-type pack tolerates daily 100% charging, while the Mercedes-Benz GLC's NMC-type pack lasts longest kept to about 80% for everyday use.