In spite of its age, the E30 M3 continues to be used as a performance benchmark against the latest generation of ever more powerful M2s, M3s and M4s – invariably coming out on top….
By today’s standards, the normally aspirated 2.3l and 2.5l 4-cylinder S14 engine should be overwhelmed when competing against the brute force of its 6- or 8-cylinder siblings. However it’s the E30 M3’s agility and balance which led former F1 driver Jean Alesi to describe it as “the sweetest-handling machine” he could think of. The multi-championship winning E30 M3 race car set the bar so high in saloon car racing, BMW achieved the ultimate prize: the most successful road race car in history in terms of outright wins; never mind class wins or even championships.
Power-to-weight ratio is enhanced with Redux’s restored and re-engineered normally aspirated 2.5l S14 engine delivering 255hp/tonne, or the turbo charged option delivering 365hp/tonne.
The decision to offer a turbo charged S14 was not taken lightly. Whilst delivering a significant increase in both horsepower and torque, equal consideration was given to improving reliability and efficiency. Working on the theory of this being a development car for future generations of the M3, this option corresponds with BMW’s current range of turbocharged engines whilst also paying tribute to the infamous F1 World Championship winning 1.5l 4-cylinder M12/13 turbo engine.