Currently reading: Paris motor show 2010: Infiniti M hybrid
Hybrid version set to go on sale in the UK early in 2011

Infiniti has unveiled the hybrid version of its BMW 5-series challenging M saloon at the Paris motor show.

The M35h is the brand’s first hybrid production car and its powertrain won't be used in any other car until the next generation FX is launched.

See the pics of the Infiniti M Hybrid at the Paris motor show

The M35h uses a conventional automatic gearbox, albeit one with a clutch rather than torque converter, but is spared the CVT whine normally associated with hybrid drive.

It is possible to pull away on electric power alone, and in theory the M35h can be driven on its electric motor up to speeds of 60mph.

Read Autocar's first drive review of the Infiniti M Series 3.5 V6 Hybrid

The lithium-ion batteries have a 1.3Kw capacity, but the 3.5-litre V6 petrol engine will cut in at around 20 per cent throttle.

Although Infiniti are yet to release official performance and consumption figures, it has confirmed that the M35h will outperform the petrol for acceleration and the diesel for fuel consumption.

This means a 0-60mph time close to six seconds, over 34mpg and a sub 200g/km Co2 figure.

The M35h will only be available in Infiniti’s comfort orientated GT specification, with a maximum wheel size of 18in.

Prices for the hybrid version are yet to be announced, but it likely to be most expensive car in the M range.

At present, the top of the range consists of the 'Premium' versions of the GT and S models, costing £43,000 and £45,000 respectively. These come with every option box ticked.

Andrew Papworth

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