Buyer's guide
Authentic 540K models are extraordinarily rare with production limited to 167 units, requiring thorough provenance verification and expert pre-purchase inspection. Investment considerations should prioritize documented history, original coachwork, matching numbers, and professional restoration by marque specialists.
Common issues
| Issue | Severity | Notes |
|---|---|---|
| Supercharger bearing wear | High | Regular maintenance critical for original supercharged engines |
| Hydraulic brake system degradation | High | Period hydraulic components require specialized restoration |
| Wood-framed body rot | High | Ash frame deterioration common on surviving examples |