Tesla's Model X still has a lot going for it despite the new Model Y partially taking the focus.

Yet, EV acceleration isn't enough to convince every buyer of a premium SUV.

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And two of the most alluring SUVs come from BMW and Mercedes for anyone willing to spend six figures on one.

So how does the Tesla Model X stack up against the Mercedes GLS and BMW X7 flagships? Carwow resolved to investigate.

The GLS presenter Mat Watson tested a diesel, which isn't offered in the US, as Carwow tests in the UK.

The latter's electrically assisted 3.0-liter turbocharged six-cylinder produces 362 horsepower and 369 lb-ft of torque.

The former's 3.0 litre six-cylinder turbodiesel engine has 330 horsepower and 516 lb-ft of torque.

Nonetheless, Watson was able to purchase the Tesla Model X and BMW X7 in the US. Watson operated the M Performance