The BMW X3 M competition and X4 M competition have both been refreshed for 2021 with revamped styling and even more performance. The updated fast SUVs will reach the UK market this August, with the X3 M competition costing from £85,100 and the X4 M Competition on sale from £86,860.
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The headline news is, despite producing no more power from the twin-turbocharged 3.0-litre inline six-cylinder petrol engine, the 503bhp X3 M and X4 M duo produce 650Nm of torque – 50Nm more than before. 

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The extra pulling power has had a transformative effect on performance. combined with an eight-speed automatic transmission and all-wheel drive, both the X3 M and X4 M are capable of a 0-62mph time of just 3.8 seconds – 0.3sec quicker than the previous model. Top speed remains electronically limited at 155mph, although opting for M Driver’s package takes the limiter up to 180mph.
To help it produce the extra shove down low in the rev range, the pair of fast SUVs have adopted the forged lightweight crankshaft from the latest BMW M3 and M4, plus a new cylinder head that’s claimed to reduce weight and internal friction. A new intercooler for the turbos, plus a revised wastegate, optimised injection system and variable valve control complete the engine updates.