Coachbuilders Graber of Switzerland had produced some bodies for the TC21 that were much more up to date than the standard offering built for Alvis by Mulliners (Birmingham).

It was therefore decided to make the Graber style (October 1955 Paris Motor Show car) the basis of a new model and the rights were bought resulting in the TC 108G.

The car was only available as a two-door, four-seat saloon made by forming metal around a traditional wooden frame.

The deal was terminated and a new contract placed with Park Ward Alvis having bought Graber's drawings, jigs etc.

[2] The 2993 cc engine was uprated slightly to produce 104 bhp (78 kW) at 4,000 rpm by modifying the cylinder head and fitting twin SU carburettors.