Ford Mustang
Engines for the 1974 models included the venerable 2.3 L I-4 from the Pinto and the 2.8 L Cologne V6 from the Mercury Capri. The 1975 model year reintroduced Windsor V8 that was only available with the C-4 automatic transmission, power brakes, and power steering. This continued through production end in 1978. Other transmissions were the RAD 4-speed with unique gearing for all three engines, and the C-3 automatic behind the 2.3 L and 2.8 L. The 5.0 L designation was not applied until the 1978 King Cobra model. All 302 equipped Mustang II's, except the King Cobra received an updated version of the classic Ford "V8" emblem on each front fender.
Lancia Beta
The different models all underwent various revisions and improvements over the years. Power steering specially produced by the German company ZF became available on certain Left Hand Drive models and was also used on the Gamma. For 1975 the exterior styling was modified by Pininfarina: "the back window has been relocated in a more upright position" to aid visibility, the rear quarter pillars gained sharper trailing edges, the waistline was lowered and windows made larger. Electronic ignition became available in 1978. Automatic transmission became available the same year; the Beta was the first Lancia manufactured with an automatic transmission factory option. In 1981 power steering also became available on certain Right Hand Drive models. Also in that year a fuel-injected version of the 2.0-litre engine became available on certain models. The Coupé and HPE underwent a facelift in June 1983 (at the same time that the superhcarged VX versions were introduced) and remained available for a little while longer than the other bodystyles.
Late in the model's life Lancia released the Trevi VX, with a Roots-type supercharger fitted between the carburettor and low-compression two-litre engine; the Coupé VX and HPE VX followed soon after (June 1983). These three variants were known as Volumex models and had the highest performance of all the road-going production Betas, with and substantially increased torque over the normal two-litre . The Coupé VX and HPE VX can be distinguished from the normal cars by the offset bulge on the hood which is required to clear the new air intake, a spoiler fitted below the front bumper and the rubber rear spoiler. They also have stiffer spring rates. Lancia produced 1272 Coupé VX, 2370 HPE VX and 3900 Trevi VX. Most were left-hand drive (only 186 right-hand drive HPEs and around 150 RHD Coupés were imported to the UK, however the car was also sold in some other RHD markets so exact RHD production remains unknown). Only one right-hand drive Trevi VX was made.