BMW Z4 (E85) - 2006 Update

2006 Update

In 2006, BMW updated the Z4 line by introducing the M Roadster, and later the M Coupe, with the vaunted S54 "M" engine. The standard cars received the new N52 I6 engines. The N52 features a magnesium block construction, which consists of an aluminium interior for the cylinders, and an outer magnesium block. The engine features BMW's Valvetronic variable valve timing system for increased performance, are considerably more powerful through the middle of the rev range, and also improve fuel economy noticeably. A final benefit of the N52 engines is that they improve handling and turn-in due to the decreased weight over the nose of the car. This is particularly noticeable when compared to the Z4 M, which continued with the heavier S54 iron block engine.

Standard equipment include Run Flat tires, ABS Brakes, Stability Control, Traction Control, CD Player, Power Locks, Power Windows and Air Conditioning. The Z4 included Side Airbags, Driver Airbags, Passenger AirBags, Knee Airbags and 5 Star Rollover Protection.

In addition to the powertrain updates, BMW made mild revisions to the styling of the Z4, added several electronic features, and increased the brake size on the 3.0si models.

The 2006 BMW Z4 received a number of updates including a revised exterior, more powerful engines and improved interior features. Highlighted by a new front bumper ensemble with a larger air intake, rectangular foglights and front side reflectors, the exterior also received new wheels, rear bumper and taillight designs. The interior was fitted with a new aluminium trim, shift knob for automatic transmission and new colors. The 3.0i replaced the 2.5i and the 3.0si replaced the 3.0i. Power for the 3.0i was lowered from 228 hp (170 kW) and 220 lb·ft (300 N·m) of torque to 215 hp (160 kW) and 180 lb·ft (240 N·m) of torque, while the 3.0si got 261 hp (195 kW) and 232 lb·ft (315 N·m) of torque. A 6-speed manual transmission was standard with an optional 6-speed automatic. 17-inch wheels were standard on both trims and the Sport Package also features new wheels as well.