# 2006-2008 BMW Z4 M Roadster The Z4 M Roadster represents BMW's high-performance take on its second-generation roadster, stuffed with the E46 M3's legendary 330-hp inline-six and aggressive M Division upgrades. This rare beast—only 1,815 U.S. examples built—delivers raw, visceral thrills with its naturally aspirated 8,000-rpm screamer, precise steering, and neutral handling. Enthusiasts praise its analog purity and soundtrack but note the firm ride and occasionally twitchy rear end. The polarizing "flame surfacing" styling has aged controversially. Infamous for expensive maintenance—rod bearings and VANOS issues demand attention—it requires deep pockets. Today, it's perfect for collectors and driving purists seeking an appreciating modern classic with old-school character. Best suited for spirited weekend drives rather than daily commuting, it rewards committed drivers willing to accept its high-strung temperament.
The Z4 M Roadster features BMW's high-strung S54 inline-six engine, requiring expensive maintenance including $2,000+ rod bearing replacements (critical preventive maintenance at 60-80k miles to avoid catastrophic failure). VANOS system repairs and rear subframe cracking are common concerns. Premium fuel, tires, and insurance are costly. Generally reliable if maintained properly, but maintenance costs significantly exceed typical vehicles.
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