FrontRunners: Four Scores

    BMW is introducing a 4-cylinder vehicle to the United States this fall for the first time in more than a decade. The $50,000 BMW Z4 sDrive28i Roadster (www.bmwusa.com) is also the first U.S. model to be powered by BMW’s all-new Twin-Power Turbo 4-cylinder engine, which develops 240 hp and a stout 260 ft lbs of torque from just 2 liters of displacement. The engine offers more torque than BMW’s current 6-cylinder, greater fuel efficiency, and lower emissions, and its lighter weight enhances the Roadster’s agility. The car’s 8-speed automatic transmission further exploits the engine’s efficiency while maximizing its performance. The Roadster is also available with a 6-speed manual transmission.

    Fewer than 100 of the special-edition Aventador will be available in North America this summer…
    Photo by Dr. Ing. h.c. F. Porsche AG
    The lightest Boxster is also the fastest and most powerful yet, with a new and improved design…
    Photo by 2015 Mercedes-Benz
    Replete with passenger amenities, the car offers a relative value for those who prefer to be driven…
    Perhaps its most visually striking feature is its robotically controlled doors that fold up 90...
    The German carmaker has made changes to increase the car’s performance and bring greater tech...
    The car’s design is based on that of the 1967 33 Stradale, which is valued at over $10 million...
    Photo by Mercedes-Benz USA
    Based on the road-going GT sports car, the GT3 was developed to comply with FIA GT3 race...
    The Aero 8’s improved comfort, convenience, and safety should make for Morgan’s best open-air...
    Photo by Olivier Staub
    Robb Report takes the new and improved three-wheeler for a spin on the roads of Malibu, Calif.…
    With a new, contemporary design, this is not your grandfather’s Continental…