The new Porsche 911 Turbo S Coupe and Cabriolet will make their world premiere at the Birmingham Motor Show later this month.

Based on the current generation 996, the 911 Turbo S goes on sale in the UK in August.

The twin-turbocharged, 3.6-litre flat six engine has been tuned in the Turbo S model to develop more power and torque for even greater performance. Power is up 30bhp to 450bhp, while torque jumps to 620Nm from 560Nm. These improvements come as a result of fitting larger turbochargers, modified intercoolers and revised engine management electronics. The six speed manual transmission has been strengthened to handle the torque increase.

Brakes have also been uprated, with the Porsche Ceramic Composite Brakes (PCCB) system offering a 50% weight reduction per wheel over the conventional steel brake disc equivalent, as well as superior fade resistance characteristics under heavy braking.

Standard equipment on the Turbo S includes metallic paint, Xenon headlights, a BOSE audio system and the Porsche Communication Management System (PCM) incorporating audio, telephone and satellite navigation functionality. Additionally, the Turbo S offers 18″ alloy wheels painted in GT Silver metallic, plus full leather interior trim, aluminium-coloured instrument dials, cruise control and a CD autochanger.

The Cabriolet, based on the Turbo S Coupe, adds an electro-hydraulic folding roof which opens or closes in 20 seconds and can be operated at speeds up to 31mph. As standard, there’s also a removable aluminium hardtop – weighing only 33kg – for year-round convenience.

The Porsche 911 Turbo S Coupe is priced at £99,300, while the Cabriolet comes in at £105,030.

Performance for the Coupe is 0-62mph in 4.2 seconds and a top speed of 191mph. The Cabriolet is only marginally slower at 4.3 seconds but has the same top speed.