Spitfire with the success in Le Mans and the GT6 as bigger brother, inspired a lot of Spitfire Fastback Hardtops.
But there were a less known TR4 Fastback Hardtop available as well.
60s TR4 Hardtop advertisment
TR4 Dove vs Hardtop
The advantages of an hardtop, as in the ad, to change within 20 minutes, are one, but there were always high quality TR Coupe, starting from the TR2 Francochamps Coupe, around. TR4 is no exeption and with the TR4 Dove a similar shape is around.
One of 43 Doves ever built, was for sale in France a little while ago.
Note that the rear window is larger.
But I doubt it that there are more Hardtops around and you still get the classic roadster attitute as well.
The rear especially gives the dove a more elegant shape
Seperate TR4 Fastback Hardtop
A few pictures of differant TR4s with the fastback hardtop attached.
TR4A/TR250 (?) for sale in the US
This car was advertised in the US, so maybe there will be soon a restored TR out there with this hardtop