The Q4 brand was coined by Alfa Romeo to distinguish all four-wheel drive models. The 164 range also received its Q4, which debuted in 1993. The starting point was the 3.0 V6 Quadrifoglio, with the three-liter 232 hp at 6300 rpm. The bodywork set-up was specific. The performance was really high: top speed over 240 km / h, from 0 to 100 km / h in less than seven seconds. The Q4 went out of production in 1998, without ever having been restyled with the modifications of the Super.