The 2008 BMW Z4 is available in three models: 3.0i and 3.0si convertible and 3.0si coupe. A 215 horsepower 3.0L six-cylinder engine still powers the 3.0i while a 255 horsepower 3.0L six-cylinder engine powers the 3.0si coupe and convertible. Standard features across the board include keyless remote entry, heated mirrors, daytime running lights, and hill ascent control. Safety features include rollover protection system, tire pressure monitor, and run flat tires. An optional Sport Package adds M sport seats, sport suspension, dynamic drive control button, run flat tires, and star spoke alloy wheels. Other optional features include heated seats, a Navigation system, and the BMW Assist Communication System.