Giulia Sprint GTA GTA

The Alfa Romeo Giulia Sprint GTA (Gran Turismo Alleggerita — 'lightened') is one of the most celebrated competition cars in automotive history. Introduced in 1965, it was developed by Autodelta, Alfa Romeo's official racing department led by Carlo Chiti, as a homologation special for Group 2 touring car racing. Based on the already excellent Giulia Sprint GT designed by Giorgetto Giugiaro at Bertone, the GTA featured an aluminum body that reduced weight by approximately 200 kilograms compared to the standard steel-bodied car. This dramatic weight reduction, combined with a twin-plug cylinder head that significantly improved combustion efficiency and power output, created a car that was devastatingly effective in competition.

The GTA's 1,570cc twin-cam engine, in road specification, produced approximately 115 horsepower — already impressive for its displacement. In race trim, with Autodelta's modifications, power outputs of 170 horsepower or more were achieved, giving the featherweight GTA a power-to-weight ratio that embarrassed many ostensibly more powerful cars. The engine's twin-spark ignition system, using two spark plugs per cylinder, was a technology borrowed from aircraft engines and provided more complete combustion, smoother running, and improved reliability under racing conditions. Combined with close-ratio gearboxes and limited-slip differentials, the GTA was a complete racing package.

The GTA's competition record is extraordinary. In the European Touring Car Championship, the car dominated the 1.6-liter class for several seasons, with drivers including Andrea de Adamich, Teodoro Zeccoli, Spartaco Dini, and Ignazio Giunti achieving countless victories. The GTA was equally successful in national championships across Italy, Germany, Britain, and beyond. Its compact dimensions, responsive handling, and brilliant engine made it a natural competitor on circuits of all types, from tight street circuits to fast sweeping tracks. The later GTA 1300 Junior, using a 1,290cc version of the twin-cam engine, extended the model's competition success into the sub-1.3-liter class.

Exactly 501 GTAs were built to satisfy homologation requirements, making it a genuinely rare car even by the standards of 1960s competition specials. Today, the Giulia Sprint GTA is one of the most valuable and sought-after Alfa Romeos, commanding prices that reflect its extraordinary competition heritage, extreme rarity, and the pure joy of driving an authentic example. The car is a staple of historic racing events worldwide, from Goodwood to Spa-Francorchamps, where its distinctive exhaust note and sideways cornering style continue to thrill spectators. The GTA badge itself has become Alfa Romeo's most prestigious performance designation, applied to only the most special road cars in the decades since.