A revised Biturbo Spyder A revised Biturbo Spyder was introduced in 1989. These cars, with bodies still produced by Zagato, were distinguished by larger, 15-inch alloy rims and redesigned front and rear bumpers. The export model received a V6 engine enlarged to 2.8 liters, and these cars are often referred to as the Spyder '90, dropping Biturbo from the name. introduced in 1989. These cars, with bodies still produced by Zagato, were distinguished by larger, 15-inch alloy rims and redesigned front and rear bumpers. The export model received a V6 engine enlarged to 2.8 liters, and these cars are often referred to as the Spyder '90, dropping Biturbo from the name.
