Which? uses cookies to improve our sites and by continuing you agree to our cookies policy.

Infiniti M35h hybrid first details

New M35h is Infiniti's first ever hybrid

New M35h is the first hybrid Infiniti

New M35h is the first hybrid Infiniti

Infiniti has released the first detailed information about its forthcoming M35h petrol-electric hybrid executive saloon.

The Infiniti M35h hybrid completes the new Infiniti M line saloon range, joining the regular V6 petrol and turbodiesel models. It is the first Infiniti hybrid ever.

Hybrid Infiniti will have a 301bhp V6

The Infiniti M35h is powered by a 301bhp 3.5-litre petrol V6 and 67bhp electric motor combo, delivering an impressive blend of performance and economy – on-paper at least. It’s said 0-62mph will take less than 5.9 seconds – making the hybrid the fastest car Infiniti sells in Europe – while CO2 emissions are less than 170g/km.

Fastest Infiniti in Europe

Fastest Infiniti in Europe

Top speed will be limited to 155mph, while combined fuel economy is expected to reach 38.6mpg. All figures are, however, subject to homologation.

Beyond this, Infinifi says the M35h can cruise at up to 49mph (80km/h) on electric power alone, with a maximum electric-only range of 1.2 miles (2km) – at lower speeds.

M35h uses green technology

Infiniti uses a number of techniques to get the best possible economy from its new hybrid.

The electric motor is positioned close to the seven-speed automatic transmission, allowing Infiniti to do away with a traditional inefficient torque converter. This alone is said to represent fuel savings of up to 10%, while making the gearshift characteristics smoother and faster.

M35h uses green technology

M35h uses green technology

Read Infiniti reviews on the Which? website

Electric brakes?

In a world first, the electric motor is also harnessed to operate the brake cylinders.

The snappily entitled Electric Driven Intelligent Brake theoretically means you get the same braking power as a traditional hydraulic braking system. But the M35h uses the electric motor to do as much of the slowing down as possible. This maximises the energy regeneration and therefore saves more fuel.

The electric/hydraulic steering system brings a further 2% fuel saving, again by deactivating when not in use.

Infiniti will still feature generous kit

At 1,885kg, the Infiniti M35h isn't light

At 1,885kg, the Infiniti M35h isn’t light

Compared with the regular petrol Infiniti M, the M35h gains 120kg – bringing it up to a chunky total kerbweight of 1,885kg. The batteries have been fitted under the boot floor, reducing luggage space slightly, but the M35h is apparently still able to accommodate four sets of golf clubs or two A-size suitcases.

In all other respects it is much the same as any other Infiniti M – which is to say generously equipped and solidly built.

Available trim levels are base, GT and GT Premium. Top-level features include Intelligent Cruise Control, Lane Departure Warning and Prevention, Active Noise Control, Connectiviti+ satellite navigation, 16-speaker Bose stereo and Forest Air climate control.

The Infiniti M35h goes on sale next year. Full specification and pricing details will be announced nearer the time.

See our reviews of the best luxury cars

Back to top