a revised interior and exterior, a boost in performance for the CXL Turbo up to 258 hp (192 kW) and 295 lb·ft (400 N·m) of torque, and an available all-wheel drive option offered for the 2.0L engine/6-speed automatic transmission equipped vehicles. Changes for the GS include revised interior and exterior, a drop in power to match that of the CXL Turbo, and available an all-wheel-drive option offered for the 2.0L / six-speed automatic transmission equipped vehicles. The six-speed manual transmission is still offered, but only in the front-wheel-drive variant. Buick's VentiPorts have reappeared starting with 2014 models, a styling feature unique to Buick that dates back to 1949. Several new safety features were added for the 2014 year, which include forward collision warning, lane-departure warning, blind-spot monitoring, rear cross-traffic alert, and a following-distance indicator. The foregoing are all part of a Driver Confidence package, while collision preparation, which pre-loads the brake system ahead of an imminent collision, and adaptive cruise control are available separately. Sixth generation (2018) On April 4, 2017, the sixth-generation 2018 Buick Regal was introduced at the GM Design Dome in Warren, Michigan; sales of the model line began in China on July 21, 2017. In line with the previous generation, the Regal was developed by Opel in Germany as a counterpart of the Opel/Vauxhall Insignia, with Australia and New Zealand receiving the model line as the Holden ZB Commodore. Production of the American-market Regal was moved back from GM Canada to Opel in Russelsheim. Shifting away from the previous 4-door sedan bodystyle, the Regal was expanded to a five-door liftback sedan and a 5-door station wagon (the first Buick station wagon since the 1996 Roadmaster and Century Estates). Both the liftback and the wagon were shared with the Insignia and the Commodore. Regal Sportback Replacing the Regal four-door sedan, the Regal Sportback is a fastback 5-door liftback sedan. While adopting a sedan-style roofline, the hatchback configuration was adopted to provide additional cargo space. Though larger in size than its predecessor, the Sportback weighs lighter than the previous-generation Regal sedan. The Sportback is available with either front-wheel drive or all-wheel drive. Powered by the LTG 2.0 L turbocharged inline-4 engine, front-wheel drive versions offer at 5400 rpm and at 2000 rpm; all-wheel drive versions produce at 5500 and at 3000 rpm, respectively. The Sportback bodystyle was offered in 1SV (base), Preferred, Essence, Avenir, and GS trims. Regal