As it was based on the Triumph Herald chassis, the TC was designed to be a simple yet cheap car to build and had very little bright work. It was a classic looking roadster, complete with the long bonnet and a turning circle that few cars can beat. The Herald was originally intended to be the single donor, but builders were soon putting bigger motors into the car and Alex was not really happy with a modern Toyota 2.0 ltr engine going in a car with a chassis that was originally built in the sixties and even the Vitesse Herald became famous for its spectacular cornering. Or to put it another way it was quite a spectacle when the inner rear wheel tucked under the car in a hard corner and the Herald rolled. The main culprit for this was a single traverse leaf spring that went across the independent Triumph rear suspension.

It was around this time that Alex hired more staff to build turnkey models, such was public demand. However, it was after building up a couple of these he became aware of its limitations. The Herald chassis was getting old, most were rusty and there was a limit in the size of engine that you could put into them. Thus, it was that late in 1988 the TC ended production and work began on the car that would be called the TG.

A major difference between the TC and the TG was that the TG would have an Almac designed chassis and would be based on a modern donor car, the Holden Gemini. The TG now had a soft top as well as a new hard top which looked very similar to the soft top. In fact, most thought it was a soft top until they touched it. Doors changed from the suicide type to more conventional rear opening type. The best improvement was the new chassis designed to take Holden Gemini running gear. The kit was now more upmarket, and the entire car could now be built out of a box. With this kit Alex addressed all the shortcomings of the TC. The car could be purchased as a total kit in a box with all components that the builder needed to complete the car, including every nut and bolt.

The car went on sale during 1989 and was visually the same as the TC other than the fact that the fibreglass radiator surround had now been replaced by one made from stainless steel and the car now sported bumpers. Another feature was a hardtop, although this could be retrofitted to earlier models. Strangely enough this model did not sell as well as its predecessor and demand tapered off after only another 16 or so had been made. Production of the TG stopped in 1991.