Mercedes-Benz EQS vs Porsche Taycan

The Mercedes-Benz EQS costs £3,565 more than the Porsche Taycan. For that premium it adds 124 miles more WLTP range, 203 litres more boot space and 1 more seat (5 versus 4). The Porsche Taycan is not just cheaper - it also offers 50 kW more power. On EVcarsguide's combined category scores, the Porsche Taycan comes out ahead overall.

EVcarsguide estimates a real-world motorway range of about 392 miles for the Mercedes-Benz EQS and 306 miles for the Porsche Taycan - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Mercedes-Benz EQS goes roughly 86 miles further between charging stops. A rapid charge to 80% takes around 31 minutes in the Mercedes-Benz EQS and 18 in the Porsche Taycan, so the Porsche Taycan loses less time at each stop. So the Mercedes-Benz EQS stops less often while the Porsche Taycan stops for less time - pick on which you would rather do.

The Mercedes-Benz EQS is the easier car for tight UK car parks: it is 40 mm narrower than the Porsche Taycan. In a standard 2,400 mm bay that leaves about 474 mm of total clearance for the Mercedes-Benz EQS and about 434 mm of total clearance for the Porsche Taycan. The Mercedes-Benz EQS also turns in a 0.8 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 EQS and 84% for the Porsche Taycan. That is close enough that capacity loss should not decide between them. Both use NMC-type cells, so for daily use keep the charge limit near 80% to slow degradation. The Mercedes-Benz EQS has the longer battery warranty at 10 years, versus 8 for the Porsche Taycan.