To improve aerodynamics, Ron Tauranac rented a wind tunnel during the development phase.
New regulations and the resulting radial tires that Avon supplied made it necessary to revise the suspension in order to achieve better traction.
In the British Formula 3 Championship , David Brabham won the general classification ahead of fellow drivers Allan McNish and Derek Higgins .
In the German championship, Karl Wendlinger triumphed, whose RT33 was entered by Helmut Marko.
In the Japanese series, Masahiko Kageyama remained successful with five race wins.