Volkswagen has taken the surgical scalpel to its sleek hatchback ahead of the Geneva motor show later next month.

Only the keenest of eyes will notice the slight revisions to the exterior, which include a new set of head and taillights and a modified front bumper, but it is the changes underneath the skin that will impress fans.

A new range of advanced engines will be made available upon launch that are more powerful than previous offerings and are said to be 19 per cent more efficient.

At the very top of the range is the meaty Scirocco R that now develops 276bhp (up 15bhp) from a 2.0-litre turbocharged engine.

Three other petrol engines and two diesels, all of which have been revised, will also be offered to those who want a more frugal and less 'banzai' option.

The petrol range consists of a 1.4-litre petrol with 123bhp (was 119bhp), a new 2.0-litre 177bhp unit that replaces the previous 1.4-litre 157bhp unit. Despite the increase in capacity and power, it is more economical than the unit it replaces.

The previous 2.0-litre TSI 207bhp has been replaced with a 217bhp unit that is also 19 per cent more fuel efficient.

Two diesel engines will be offered, both 2.0-litre units, with either 147bhp or 181bhp, and economy of up to 68.9 mpg. Depending on power output both petrol and diesel engines come with a choice of six-speed manual and six- or seven-speed DSG gearbox.

Fans of the new look Scirocco can place an order in May and expect delivery in September.