2010 Alfa Romeo Giulietta Quadrifoglio Verde (Cloverleaf in UK) has a 1.75 L (1,742 cc) turbocharged TBi engine rated 235 PS (173 kW; 232 hp), lowered ride height (15 mm (0.6 in) at the front and 10 mm (0.4 in) at the rear), 18-inch Spoke design alloy wheels with dark titanium finish and 225/40 R18 tires plus 18-inch 5 Hole design alloy wheels as an option; an enhanced braking system (330 mm (13.0 in) front, 278 mm (10.9 in) rear) with calipers painted Alfa red; dark tinted windows, sports kick plates, cloverleaf badges, leather and microfibre seats plus sports leather seats as an option; dark brushed aluminium dashboard. 1750 is an engine size which has its roots in Alfa Romeo's history, with 1.75 L engines being used to power some of Alfa Romeo's first cars.

 

In 2014 Geneva Motor Show Alfa Romeo introduced a new Quadrifoglio Verde, it has new 240 PS (177 kW; 237 hp) direct injection 1750 Turbo Petrol aluminium-block engine and Alfa TCT 6-speed twin dry clutch transmission borrowed from Alfa Romeo 4C. With new engine the Giulietta's flagship can exceed 240 km/h (149 mph) and accelerate from 0 to 100 km/h (62 mph) in only 6.0 seconds.