VW has released the first details of its new Golf GTE, effectively a plug-in hybrid version of the Golf GTI.

The Golf GTE is powered by a 1.4-litre direct-injection petrol engine with 150PS combined with a 102PS electric motor integrated into the gearbox housing.

When working together, they produce 204PS and 350Nm of torque, enough to complete the 0-62mph sprint in 7.6 seconds and carry on to a 135mph top speed.

More remarkable, though, is a provisional economy figure of 188mpg with CO2 emissions of just 35 g/km, giving the GTE a theoretical range of 580 miles.

The Golf GTE can drive on electric power alone for up to 31 miles and at speeds up to 81mph, and this mode can be activated by a button next to the gear lever.

In this mode, power is supplied a 8.8 kWh lithium-ion battery that can be recharged in 3½ hours via a domestic outlet or 2½ hours from a wallbox.

Power from the petrol engine and electric motor are fed through a six-speed DSG gearbox with a triple-clutch system, while the use of an electro-mechanical brake servo and electric air conditioning compressor help to improve efficiency.

Externally the Golf GTE shares much with both the GTI and e-Golf, with C-shaped LED running lights and blue accents across the grille and headlights.

In the cabin, the GTI’s red highlights are replaced with blue.

Standard equipment includes 18-inch alloy wheels, LED headlights, and satellite navigation.

Pricing has yet to be confirmed, although ordering is set to open in August with first deliveries expected before the end of the year.