Trans-Am series

The Trans-Am series was created in 1966 by the SCCA as the Trans-American Sedan Championship. Derived from the SCCA's Group II class, it features production-based vehicles competing on road courses. The series is known for competition of pony cars like the Ford Mustang, Chevy Camaro, Plymouth Barracuda, AMC Javelin and Dodge Challenger in the late 1960s and early 1970s, though marques from many different countries have competed in the series.

The Trans-Am series is the longest running racing series in the United States of America, its first race run on March 25 1966. The Sports Car Club of America (SCCA) is the sanctioning body for the series and holds the rights to the "Trans-Am" name. The series is currently operated by the Champ Car World Series and runs the majority of its races in support of the parent open-wheel championship.

History

The Beginnings

At first, the Trans-Am vehicles were primarily modified versions of the road-going car. The competition was divided into two classes- an "Under 2 Liter" class (predominantly small European sedans) and the "Over 2 Liter" class (limited to 5 liters displacement).

The first race was in 1966 at Sebring Raceway. The overall win went to Jochen Rindt driving an Alfa-Romeo (an Under 2 Liter entry), with Bob Tullius (driving a Dodge Dart) taking second overall, but first in the Over 2 Liter class. This race was marred by tragedy: driver Bob McLean is killed in one accident and an incident between Mario Andretti and Don Wester resulted in the death of four spectators.

The early years were largely dominated by Mark Donohue, who would chalk up 20 victories between 1967 and 1970 and three drivers's championships, the third achieved in 1971.

In 1969 the "Under 2 Liter" class is split off into the Two-Five Challenge, with Trans-Am becoming a single class competition. Rules evolved over the years, incorporating FIA touring and grand-touring classes as well as SCCA Club Racing classes. The different classes had restrictions placed on the allowed modifications in an effort to equalize competition between the different cars. In 1976, Trans-Am returns to the two category format, classifying FIA Group 4 and 5 cars as "Category II".

The Modern Era

In 1980, the SCCA develops a weight-to-displacement ratio for classifying cars that establishes five-liter, 2600 pound vehicles as the preeminent formula for the series. Tube-frame cars begin to appear on the grid and would become the standard for Trans-Am competitors.

External Links

• The Official Trans-Am Site (http://www.trans-amseries.com)