MG IM5 vs Porsche Taycan Cross Turismo

The Porsche Taycan Cross Turismo costs £59,750 more than the MG IM5. For that premium it adds 43 miles more WLTP range, 167 kW faster peak rapid charging and 223 kW more power. The MG IM5 is not just cheaper - it also offers 1 more seat (5 versus 4). On EVcarsguide's combined category scores, the Porsche Taycan Cross Turismo comes out ahead overall.

The MG IM5 is £59,750 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 £59,830 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 290 miles for the Porsche Taycan Cross Turismo - both below their WLTP figures, because sustained high speed is the hardest case for an EV. The Porsche Taycan Cross Turismo goes roughly 72 miles further between charging stops. A rapid charge to 80% takes around 65 minutes in the MG IM5 and 18 in the Porsche Taycan Cross Turismo, so the Porsche Taycan Cross Turismo loses less time at each stop. That makes the Porsche Taycan Cross Turismo the stronger long-distance car.

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 Cross Turismo. 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 Cross Turismo. 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 Cross Turismo's NMC-type pack lasts longest kept to about 80% for everyday use. Both batteries carry a 8-year manufacturer warranty.