The 2014 BMW Z4 is a two-seat convertible with a retractable hardtop roof. There are three versions that correspond to engine size: sDrive28i, sDrive35i and sDrive35is.
The 28i comes standard with 17-inch wheels, automatic and adaptive bi-xenon headlights, LED running lights, automatic wipers, heated mirrors, keyless ignition/entry, cruise control, dual-zone automatic climate control, eight-way power seats with four-way lumbar adjustment and driver memory functions, a leather-wrapped tilt-and-telescoping steering wheel, leatherette premium vinyl upholstery, auto-dimming mirrors, basic BMW Assist service, Bluetooth phone connectivity and a sound system that includes a CD player, HD radio, an auxiliary audio jack and an iPod/USB audio interface.
Besides its bigger engine, the 35i gets 18-inch wheels, sport seats (with adjustable side bolsters and thigh support) and sun-reflective leather upholstery. These items are optional on the 28i.
The 35is adds an even more powerful engine, unique styling cues, a lowered suspension with adaptive dampers, an upgraded audio system and a sport steering wheel.
Each Z4 offers the following optional packages. The Cold Weather package adds heated front seats, a heated steering wheel and retractable headlight washers. The M Sport package adds an adaptive M-tuned suspension, lightweight 18-inch wheels, an increased top speed limiter, an aerodynamic body kit, a thicker sport steering wheel and special interior trim. The Technology package features a navigation system, 12GB of music storage, voice commands, enhanced BMW Assist, enhanced Bluetooth/USB functions and smartphone apps/integration.
Color themed packages are also available. The Canyon Brown package features like-named leather seating, the power sport seats and anthracite wood accents. The Hyper Orange package allows one to select a Valencia Orange exterior color (not mandatory, however) and features a black and orange interior scheme. It also includes faux suede on the headliner, seats and door panels as well as unique "metal weave" cabin accents.
Available for the 28i is a Sport package (18-inch wheels, power sport seats, adaptive M-tuned suspension and an increased top speed limiter). Both the 28i and 35i can be had with a Premium Sound package that includes the 35is's upgraded audio system along with satellite radio.
Stand-alone options include different wheels, front and rear parking sensors, automatic high beams, heated seats and satellite radio.