




new car had to be
better in all aspects :
faster, higher
built-quality and
safer. The safety-
and emission rules
made it difficult for a
small company like
Lamborghini. The
staff ordered that
every car should
have the same
power, no special U.S. or Italian-market cars this time, and should have a top speed of at
least 315 Km/h. (Most U.S. cars had less power than the europeans, due to the U.S.
emission regulation). Luigi Marmiroli (who had worked at Ferrari and Alfa Romeo) was
contracted as Technical Director and he decided to ask Marcello Gandini to design the car.
(He also had designed the Miura and the Countach). Gandini had his first model ready in
may 1986 and Marmiroli loved it, there was one problem, again Lamborghini was in
financial problems, and in april 1987 the company was taken over by the Chrysler
concern. Chrysler got involved in the new project and they decided to let Gandini make a
new design. (Gandini used the first design later for the Cizeta-Moroder, a V 16 car.) The
americans weren't quite satisfied and, in cooperation with Gandini took the model to their
wind tunnel and design-computers, it came out as we know it today. The space frame
was made of square tubes, witch was easier to construct then the round- tube frame of the
Countach. Many parts of the Diablo were made out of composite-material, much lighter
than steel, but, more important, much stronger. The result was a car that is much stiffer
than the Countach. The engine was almost completely changed, it's bore and stroke now
were 87 x 80 mm., and the cilinder s got a Nikasil coating, compression was raised to
10:1 and an electronic sequential fuel injection system, specially designed for the car was
added. With this new engine the Diablo was the most powerful road car with it's 485 Hp
at 7000 Rpm. (Ferrari claimed 478 Hp for the F40). The built quality of the Diablo was
much better than the Countach, due to new production methods they learned from
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