The Lamborghini Aventador LP 750-4 SuperVeloce was announced at the 2015 Geneva Motor Show. It features an upgraded powertrain, with maximum power output increased to 750 PS (552 kW; 740 hp) from the standard coupé's 700 PS (515 kW; 690 hp). Combined with weight reduction of 50 kg (110 lb) from increased usage of carbon fibre both inside and outside the car, the LP 750-4 SV has a power to weight ratio of 1 hp to 2 kg. The car also features improved aerodynamics, with downforce increased by 180% as compared to the standard Aventador coupé. Notable aerodynamic upgrades are a revised front splitter and a rear diffuser along with a fixed CFRP rear wing. The car's driving dynamics have also been upgraded, featuring new enhanced electronic steering for superior maneuverability at high speeds, magnetic pushrod suspension for superior handling, and chassis improvements to increase rigidity. Overall the LP 750-4 SV's 0–100 km/h (0–62 mph) acceleration time is decreased from 2. 9 seconds to 2. 8 seconds, with the theoretical top speed still "somewhere in excess" of 350 km/h (217 mph). Delivery of the car began in the second quarter of 2015 with production limited to 600 units along with a base price of US$493,069. Road & Track recorded a 0–241 km/h (0–150 mph) time of 12. 8 seconds, a 0–322 km/h (0–200 mph) time of 33. 5 seconds, and a 0-1⁄4 mile (402 m) trap speed of 227. 4 km/h (141. 3 mph) in the March 2016 0–322 km/h (0–200 mph) shootout.