The GT6 MKII frontal appearance has been considerably altered by raising the front bumper to the level of the radiator grille and the side light flasher units are now in a single cluster below the bumper.

Additional louvres are incorporated behind the wheel arches to reduce under bonnet temperature.

The rear overriders have been raised and the indicators and reverse lights are positioned close together above these. Extractor vents for the full-flow ventilation system are positioned behind the rear quarter lights. An electrically heated rear window is fitted as standard equipment and the GT6 MKII badges at the front and rear identify the car.

New simulated magnesium wheel trims also distinguish the exterior of the new car.

The 1998cc straight six cylinder engine is the familiar unit fitted to the earlier GT6, but the power output has been increased by nearly 10 per cent to 104 bhp at 5,300 rpm. This has been achieved by improved breathing through the cylinder head and camshaft modifications. 

The engine produces its maximum torque of 1,400 lb in at 3,00 rpm. The engine drives a four-speed all synchromesh gearbox through an 81/2 in diaphragm clutch. The differential is rubber mounted to insulate against noise transmission.

The rear suspension has been radically redesigned and consists of a transverse leaf spring which acts as the top link of the suspension, bottom wishbone and trailing radius rods for fore and aft location. The hub carrier is cast steel and telescopic hydraulic dampers are fitted. Transmission from the differential is by a fixed length half-shaft with a universal joint at the inner end and Rotoflex rubber flexible coupling at the outer end.

This suspension system minimises changes in camber angle under roll, bump, pitch and braking thus improving straight line stability, roadholding and handling.

The car is equipped with Goodyear G800 radial tyres as standard.

The interior of the GT6 MkII has been entirely retrimmed. The dash panel is finished in non-reflective wood veneer and carries new matt black surround instruments.

The speedometer and tachometer are grouped in front of the driver and the fuel and water temperature gauges are positioned in the centre of the dash. Warning lights for the main beam, oil pressure and ignition are in the speedometer and direction indicator and rear screen demister in the tachometer dial. The indicator for hazard warning lights is in the centre of the facia.

Dash mounted rocker type switches control rear screen demister, two-speed screen wipers and side panel and headlamps. The combined ignition lock ad starter is mounted close to the choke pull and the screen washer button close to the wiper switch.

The heater controls are recessed into the centre of the facia panel.

A heated rear screen is fitted as standard equipment.

The door trims have been altered to accommodate revised window winder and door handles which now fall more readily to hand.

The seats have been recontoured and now give approximately 11/2" more headroom. They tip up to give access to the rear parcel shelf or the optional children’s seats when fitted and are secured by spring loaded catches. The luggage shelf behind the seats has been reshaped to give more room for bulky cases.

A new heating and ventilation system is now fitted as standard equipment, which provides hot or cold air to the screen and direct into the footwells. Fresh air vents which are directionally adjustable are fitted in the facia and under the dash to direct cold air if required onto the driver’s and passengers’ feet.

Vents are provided behind the rear quarterlights to extract used air. The system is controlled by a two lever system in the centre of the dash and incorporates a two speed blower.

The GT6 was originally introduced as a flexible, smooth, high speed GT car and the increase in engine power has given its already sparkling performance an extra boost. Acceleration time from 0-60 is cut by approximately five percent to 10.5 seconds and the standing quarter mile time is reduced by 0.2 secs to 17.5 sec. However it is at high speeds that the extra power is most noticeable. 70-90 mph in top gear takes 11 secs, an improvement of 1.5 secs. Top speed is increased by 3 mph to 110 mph