Z4 M Roadster Buyers Guide File
The , produced between 2006 and 2008, is widely considered a "modern classic" for its high-revving S54 engine and raw driving experience . It was the last M car to feature the legendary S54 straight-six, the same power unit found in the E46 M3. Unlike the standard Z4 models of the era that used electric power steering, the M Roadster utilized a hydraulic steering rack from the M3 CSL for superior driver feedback. Key Specifications Engine 3.2L S54 Inline-6 Power 330–338 hp @ 7,900 rpm (depending on market) Torque 262–269 lb-ft @ 4,900 rpm Transmission 6-speed manual (only option) Performance 0–60 mph in 4.7–4.8 seconds; 155 mph top speed Pre-Purchase Checklist: Common Issues Z4 M Roadster common issues
