Audi A8 Hybrid

We put petrol-electric Audi A8 Hybrid through its paces as German firm promotes its eco-friendly credentials

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3.0 out of 5

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The A8 Hybrid is a great technological showcase. It’s smooth and comfortable, and proves that Audi’s petrol-electric technology demands few compromises. Although the 3.0-litre TDI quattro is a better all-rounder on the road, and feels much faster, the Hybrid is still good to drive while offering much lower running costs.

The A8 Hybrid will be the first petrol-electric Audi to hit the UK, and promises big efficiency figures from the smallest engine ever fitted to the flagship limo.

The 208bhp 2.0-litre TFSI turbo petrol engine is joined by a 1.3kWH electric motor, giving a total of 241bhp and 480Nm of torque. Audi says the system provides 44.8mpg fuel economy and 147g/km CO2 emissions. This is on par with an A4 2.0 TFSI auto and undercuts the A8 3.0 TDI’s 42.8mpg and 174g/km.

The hybrid set-up sees the electric mounted motor behind the engine, where the torque converter would normally be (it’s replaced by a dual-clutch auto). The motor runs off a lithium-ion battery pack, above the rear axle. This weighs only 36.7kg, so doesn’t upset the A8’s handling; the car is agile, despite its 1,870kg kerbweight.

But the extra weight does affect the performance in a straight line: the Hybrid takes 1.6 seconds longer than the A8 3.0 TDI diesel to cover 0-62mph, posting a time of 7.7 seconds.

Throttle response isn’t very sharp; it makes you wonder if the car really does have all the torque Audi claims. The front wheels are driven through an eight-speed box – this is the first front-drive A8 – and the car switches seamlessly between its three driving modes at the touch of a button.

In full electric mode, the Hybrid can travel up to 1.8 miles and hit 62mph. Select D, and the most efficient power source is chosen for the conditions, while S offers maximum power. But when you pull away, the car initially uses electric power; the engine kicks in when the batteries run down. A dash meter shows battery charge and regenerative braking energy.

The A8 Hybrid still has luxuries like leather, a Bose stereo and three-zone climate control, plus LED lights and unique 19-inch alloys. Prices have yet to be released, but Audi is positioning the Hybrid as an alternative to the 3.0 TDI, which starts at £56,610.

Cost is where this car makes sense. It’s more efficient and costs less to run as a company car than any other A8. Standard and long-wheelbase versions are due in the UK early next year.

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