MG IM5 vs Porsche Taycan (2020-2024)

The Porsche Taycan costs £43,917 more than the MG IM5. For that premium it adds 72 kW faster peak rapid charging, 173 kW more power and a 3.1s quicker 0-62mph time. The MG IM5 is not just cheaper - it also offers 52 miles more WLTP range, 50 litres more boot space and 1 more seat (5 versus 4). On EVcarsguide's combined category scores, the Porsche Taycan comes out ahead overall.

The MG IM5 is £43,917 cheaper to buy. Running costs are almost identical - about £192 a year either way, at 8,000 miles on an off-peak home tariff. Add 5 years of charging and the MG IM5 comes out roughly £44,037 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 217 miles for the MG IM5 and 211 miles for the Porsche Taycan - effectively matched, and both well below their WLTP figures because sustained high speed is the hardest case for an EV. A rapid charge to 80% takes around 65 minutes in the MG IM5 and 18 in the Porsche Taycan, so the Porsche Taycan loses less time at each stop.

The two are within 6 mm on width, so neither is meaningfully easier to thread into a tight space. In a standard 2,400 mm bay that leaves about 440 mm of total clearance for the MG IM5 and about 434 mm of total clearance for the Porsche Taycan. The MG IM5 also turns in a 1.7 m tighter circle, which helps with U-turns and multi-storey ramps.

Over a 8-year ownership window EVcarsguide's degradation model projects roughly 90% battery health for the MG IM5 and 84% for the Porsche Taycan. That gives the MG IM5 a modest edge in retained real-world range. The MG IM5's LFP-type pack tolerates daily 100% charging, while the Porsche Taycan's NMC-type pack lasts longest kept to about 80% for everyday use. Both batteries carry a 8-year manufacturer warranty.