A total of 33 cars ever made, 5 of them were the prototypes. 1.9-litre engine which put out a staggering 156 bhp (116 kW), and more impressive was the acceleration. 0–60 was done in only 7.6 seconds, faster than most "supercars" at the time like the Porsche 911. (wikipedia)
Convertible version of the SZ (Sprint Zagato), the Alfa Romeo RZ (Roadster Zagato) is a high-performance limited-production sports car built by Alfa Romeo with partnership via Centro Stile Zagato and Centro Stile Fiat. 3.0 L V6 12v engine.
Three colours were available as standard black, yellow and red, with black and yellow being the more popular choices. Yellow and red cars got a black leather interior and black cars burgundy. Although the interior layout was almost unchanged from the SZ, the RZ had a painted central console that swept up between the seats to conceal the convertible roof storage area.
Only 284 units built before the Zagato factory producing the cars for Alfa Romeo went in to receivership in 1994. It has the lowest production number of any Alfa Romeo. (wikipedia)