The renowned engineer Giulio Alfieri, formerly of Maserati, reengineered the Jalpa P350, building upon the Silhouette’s foundation. Alfieri extended the engine stroke to achieve a 3,485cc capacity, resulting in a power boost to 255bhp. This enhancement propelled the aerodynamically sleek Jalpa to a top speed of approximately 249km/h (155mph).
With maximum torque of 235lb/ft available at just 3,250rpm, the Jalpa boasted an impressively broad power band. Its coil-sprung suspension, mirroring the Urraco/Silhouette setup, featured McPherson struts and lower ‘A’ arms at the front, and Chapman struts with reversed lower ‘A’ arms and trailing links at the rear. Other performance elements such as rack-and-pinion steering, anti-roll bars at both ends, and ventilated discs all around were standard for a 1980s supercar.
Stylistically, the Jalpa underwent subtle changes from the Urraco, including a refined chin spoiler, adjusted rear quarters, and distinct wheels. Interior ergonomics were notably enhanced. Despite these modifications, the Jalpa largely retained its predecessor’s essence but achieved far greater success.
Production continued into the 1990s, with a total of 410 units manufactured. Motor magazine’s test results indicated that the Jalpa rivaled the Porsche 911SC and Lotus Esprit Turbo in speed. They also praised the 3.5-liter V8’s exceptional flexibility, making the Jalpa a superior performer in top gear.