FIAT 1500 Cabriolet [118 K] (1965-1966)
An evolution of the 118 H 1500 Cabriolet.
This model upgrades to a 5-speed transmission and a slightly tuned engine (115C.005, as opposed to 115.005). This change gives an extra 3 horsepower and raises the compression ratio from 8.1:1 to 9:1.
This includes the following changes:
- pistons
- camshaft
- head and valves
- intake manifold
- carb
- distributor
The 118K is most easily identified by the front grille emblem (which is now round, rather than rectangular). The main change in the interior is the addition of a (mechanically driven) tachometer.
The door panels changed in the later models (not sure exactly when) as well.
See here for specs.