TVR Grantura Series III IV 1800
|Engine||1,622 cc straight-4 1,798 cc straight-4|
|Wheelbase||85.5 in (2,172 mm)|
|Length||138 in (3,505 mm) (SIII, SIII 1800, 1800S) 141.5 in (3,594 mm)(MkIV)|
|Width||64 in (1,626 mm) (SIII, SIII 1800, 1800S) 65.5 in (1,664 mm) (MkIV)|
The final series of cars had a new, longer and stiffer chassis and coil sprung independent suspension. This chassis was designed by John Thurner and would form the basis of the one used by TVR up to the launch of the 2500M cars in 1972.
The Series III and Series III 1800 used MG engines, either 1,622 or 1,798 cc respectively, although Ford or Coventry Climax units were also available for the earlier Series III model.
In 1964 the car became available as the 1800S with a cut off, square back (called a 'Manx tail' after the similarly tailless breed of cat) and round rear light clusters from the Ford Cortina. After a stop in production in 1965, under Martin Lilley's new ownership the car reappeared in 1966 as the longer MkIV. The MkIV also featured better trim and a larger gas tank.
Approximately 300 cars were built (estimated to be 60 of the Series III, 30 of the Series III 1800, 128 of the 1800S and 78 of the MkIV) before being replaced by the Vixen.
TVR Grantura in pre-1966 Historic Racing
The Series III 1800, introduced in September 1963, is the rarest variant but by far the most popular model for pre-1966 historic racing as it was homologated with wider wheels than the original Series III as well as slightly larger carburettors and the option to use a limited slip differential. The Series II and the initial version of the Series III had their own distinct sets of homologation papers and, for racing purposes, many of the cars that were originally built as these models have been since modified to run to the later Series III 1800 specification.
The TVR Grantura is eligible for a wide range of historic racing and the smaller engined Series III cars (MG engined, 1622cc) built to 1962 specification are eligible to run in the prestigious bi-annual Classic Le Mans race for cars that competed in period at Le Mans.