It feels exactly what it is, a sharpened version of the basic California T, undoubtedly the easiest driving and most versatile Ferrari you can buy given its light but high-geared steering, its front mid-engined layout, its retractable steel roof, its good visibility, its big doors and its reasonably compact dimensions.
Not that 'easiest-driving' makes it slow. The standard Cali T and the HS are both extremely quick, sharing the new twin-turbo V8 engine the model was given in 2012. The current outputs are 552bhp at 7500rpm, and 557lb ft at 4750rpm and they push the car to a top speed of 196mph, more than enough for a roadster-GT.
The HS gets no extra poke, and neither does it need any, but its acceleration times in the upper reaches are a tenth or two quicker than the standard car's because its gearchange logic, especially with the wheel-mounted driver mode manettino set in Sport (which Ferrari people say best suits the character of the car), has been modified to give faster gear engagement both in manual and automatic transmission modes.
Likewise, the F1-Trac stability control in Sport has been tweaked to give better traction, especially when the car is exiting quick or bumpy corners. A new, louder exhaust advertises the gains.
The benefits are obvious. The car resists body roll much better than early versions, and is more or less impervious to understeer. Oversteer is just about possible on the open road with all traction aids off — there’s definitely enough power to provoke it — but Sport allows only a discreet wag of the tail, and the power is now deployed very well when you’re exiting tight bends under full noise.
Penalties? The ride comfort is definitely harmed a little by the stiffer suspension, though never to the extent that the car crashes into typical UK bumps. It can be somewhat uncomfortable, though, for a car that spends quite a lot of its time cruising at low speeds on the UK’s crowded roads. We found the best compromise was to set the manettino in Sport and select the 'bumpy road' setting also available on a separate steering wheel button. Just selecting Comfort dulls the throttle less than most of us would like.
The other issue is the exhaust. It sounds terrific when you’re going for it, what with the race-style ignition cuts and a very nice growl on the overrun. However, when cruising on motorways it drones noisily, top up or down.