Volkswagen will be bringing the Golf R400 and GTI Roadster concepts to this month's Los Angeles Auto Show.

Volkswagen will be bringing the Golf R400 and GTI Roadster concepts to this month's Los Angeles Auto Show.

First up, the Golf R400 which made its debut in April at the Beijing Motor Show will be reaching stateside as a hardcore Golf VII R packing an uprated four-cylinder 2.0-liter gasoline engine. Thanks to a tweaked turbocharger along with other upgrades, Volkswagen's engineers were able to squeeze an extra 100 HP (73 kW) and 51 lb-ft (70 Nm) for a grand total of 400 HP (294 kW) and 332 lb-ft (450 Nm).

The 3,130 lbs Golf R400 concept has a 4MOTION all-wheel drive system receiving the engine's power from a six-speed DSG transmission. This hardware arrangement grants the high-powered Golf R with a 0-62 mph (0-100 km/h) sprint in 3.9 seconds and an electronically-capped top speed of 174 mph (280 km/h).

Up next is the GTI Roadster which premiered in late May at Worthersee after being virtually introduced in Gran Turismo 6 earlier this year. Described as being "the most spectacular GTI ever", the two-seater convertible concept is motivated by a twin-turbo V6 3.0-liter engine pushing out 503 HP (369 kW) and 413 lb-ft (559 Nm) channeled to a 4MOTION system via seven-speed DSG.

Tipping the scales at 3,133 lbs, the GTI Roadster concept hits 60 mph (96 km/h) from a standstill in 3.5 seconds and tops out at 192 mph (309 km/h).

Check out the press release (two pages) for further info about both concepts.

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Volkswagen Golf R400 and GTI Roadster concepts heading to Los Angeles Auto Show