Background
The Alfa Romeo SZ, or Il Mostro (‘The Monster’) as it quickly became known, is a slice of bonkers Italian engineering that God sent to remind us that the world can be a wonderful place – and Jeez, don’t we need reminding of it in these occasionally dark times.
Launched at the Geneva Motor Show in 1989, the SZ (for ‘Sport Zagato’, in honour of the company that was to build the customer cars) is even more revolutionary under its skin than it looks. The body panels are Modar TM, a new fibreglass reinforced synthetic resin. This was a new material which, in true Italian fashion, brought its own challenges, not least of which was getting the paint to stick to it without blistering.
On the positive side, it gave a very smooth outside surface to the body panels, all of which were bonded to a load-bearing steel framework for extra chassis rigidity. Despite the panels being relatively thick (and therefore heavy) by modern standards, the SZ ended up tipping the scales at a not-unreasonable 1,256kgs, a feat the aluminium roof no doubt helped.
It was also very aerodynamic with a drag coefficient of 0.30, a figure that stands scrutiny even today. Performance was lively, with 62mph coming up in around 7.5 seconds, and a top speed of a smidgeon over 150mph courtesy of the legendary Alfa three-litre V6 engine with its 210bhp and 181lb/ft of torque.
It handled too, although the low ride height, which was essential to produce a limited ground effect, does make the car prone to grounding over sleeping policemen and the like. To combat this an electronic ride height system was fitted, which could raise the car by five centimeters at the press of a button. Nice.
McPherson struts at the front might reek of penny pinching but the rear features a DeDion rear set-up, complete with a limited slip differential helping to keep the read end in line. The final chassis tuning was done by Giorgio Pianta, who later became the team manager for the DTM Alfa Romeo team. Up to 1.4G was said to be available…
The four-year production run saw 1,036 SZ models being built, plus 278 cabriolets, or RZ (‘Roadster Zagato’ in Alfa parlance).







