2016 BMW Z4 ROADSTER: On view in the BMW exhibit during the Chicago Auto Show is the 2016 Z4 Roadster sports car - an updated version of the legendary BMW Z1 from 1987. For 2016, the rear-wheel drive BMW Z4 is available in the US with a choice of powerplants to please most sun worshipers. Cruisers will want the BWM Z4 sDrive28i, with a 240-horsepower twin power turbo 2.0-liter four-cylinder. It can be ordered with the six-speed manual gearbox or eight-speed automatic transmission. The next level is the Z4 sDrive35i that delivers a 300-hp twin power turbo 3.0L inline six-cylinder, available with the six-speed manual or seven-speed DCT. At the top is the Z4 sDrive35is, equipped with a higher-output version of BMW's venerable N54 producing 335hp and the seven-speed DCT. Tipping the scales at 3,240 lbs., the Z4 still sprints from 0-to-60 mph in just 4.8 seconds without a penalty to the miles per gallon rating Designers continued the sweeping hood, long wheelbase, low beltline and low-slung rear end. The low seating position just ahead of the rear axle gives the driver and passenger a particularly intense experience of being "part of the car. Lowering and raising the folding hardtop takes a mere 19 seconds, even at speeds up to 25 mph. For greater sex appeal, buyers can opt for the M Sport Package that adds restyled bumpers, unique cabin trim, and sportier bucket seats. While at the show, ask a BMW representative about the Hyper Orange package that adds Valencia Orange metallic paint, premium sound system, and Hyper Burnt Sienna package.