The W&P Sebring GT hardtop went on sale in 1967 and is a two piece fibreglass coupe style hardtop with Kamm tail opening boot panel incorporating a filler cap scoop. It fits all spridgets with wind up windows (Mk II Midget, Mk III Sprite onwards). It is differentiated from the Ashely hardtop in that it is much lighter, having fixed, perspex windows, and does not suffer from some of the Ashley's aerodynamic problems which can cause the back of the car to lighten at speed. On the contrary, some say that the kamm tail gives some additional grip when cornering at speed, and for that reason it has long been sought after in the racing community. It is also far rarer than the Sebring GT front with only a handful or two of examples known, and when new examples come to light they are usually in fairly poor condition, possibly having been hidden away after an accident on the track. W&P provided tinted perspex and bermuda "sunlights" as options in the hardtop, and it is also fited with an integrated fibreglass parcel shelf to cover the boot opening (unlike the Ashley). They were also fitted with a luxury headlining (in black) but this was often removed to save weight by racers. The roof sides were fitted with an aluminium rain chanel to avoid drips when opening the doors. They were supplied in black or BMC / BL factory colours to order, with the colour being added into the fibreglass, complete with SEBRING badging.

1967 brochure images

In order to fit it one has to remove the metal boot lid from the car, and for cars with a fixed hood frame (MkIII Midget, Mk IV Sprite onwards), the soft-top and hood frame also have to be removed. The hardtop attaches at the front using normal hood clips, at the rear through the boot handle catch, and at the side W&P provided adjustable side brackets which for the Mk II Midget & Mk III Sprite can be dropped and tightened into a gripping position around the side cockpit padding cut-away, and which for the MkIII Midget and Mk IV Sprite onwards have to be raised and have provision to be screwed onto the bodywork (although there is a groove on the inside of the fibreglass which neatly hooks over the side soft-top snap catches which can, with a bit of jiggling, also be used to secure the side of the hardtop (although it is not clear whether this was a clever design feature or accidental).

below row 1: W&P side brackets fitted to a Mk IV Sprite (screw bracket), below row 2: W&P side brackets fitted to a Mk II Midget (cockpit gripping bracket), below row 3: boot catch and parcel shelf, below row 4: view of open boot lid showing aluminium reinforcement and removed metal boot, below row 5: correct original black nylon luxury roof lining on RTE 662G