保时捷近日发布了911 GT3 R赛车。该车采用铝钢复合材料轻量化车身，而车顶，前机器盖和格栅，轮拱，车门，侧面和尾部及后盖都采用碳纤维复合材料。所有车窗（甚至风挡）均为聚碳酸酯材料制成。由于该车轴距比GT3 RS增加了8.3厘米，因此车辆重心得以进一步优化。同时为了提升气动布局，前轮拱增加进气口以提升下压力，而2米宽的尾翼也使车身气动布局更均衡。该车搭载一台4.0升水平对置六缸引擎，采用直喷和可变气门正时技术，喷射压力达到200巴。最大功率达到368千瓦/500马力，动力通过六速常啮合变速箱传递至310毫米直径后轮。动力的升级也必然导致制动系统的升级，该车配备前六活塞铝制单体赛车卡钳结合380通风和开槽钢制刹车盘，后轮四活塞铝制单体赛车卡钳结合372通风和开槽钢制刹车盘。该车在欧洲售价42.9万欧元（约合人民币300万元）。

 

Porsche 911 GT3 R race car unveiled with 500 PS and lighter body

Porsche has revealed the racing version of the 911 GT3 RS – the 911 GT3 R.

 

The machine features a lightweight body with aluminum-steel composite construction and roof, front cover and fairing, wheel arches, doors, side and tail sections as well as the rear cover made of carbon-fibre composite material (CFRP). All windows – and for the first time even the windscreen – consist of polycarbonate.

 

Thanks to its 8.3-cm longer wheelbase compared to its predecessor, the GT3 R comes with optimized center of gravity. Also improved are the aerodynamics – the wheel arch air vents on the front fairings increase downforce at the front axle, while the 2-m wide rear wing lends aerodynamic balance.

 

The vehicle is powered by a 4.0-liter flat-six engine, largely identical to the one of the road-legal 911 GT3 RS. It features a direct petrol injection, which operates at pressures up to 200 bar, as well as variable valve timing technology. Maximum power is rated at 500 PS (368 kW), which is transferred to the 310-mm rear wheels via a sequential six-speed constant-mesh gearbox.

 

Stopping power is provided by an upgraded brake system with six-piston aluminum monobloc racing brake calipers combined with ventilated and grooved steel brake discs with a diameter of 380 mm for the front wheels and four-piston calipers and 372-mm discs for the rear axle.

 

The Porsche 911 GT3 R will be available at 429,000 EUR (487,644 USD).