## Key Measurements
Gen II-V models:
– 12.3-12.4 meters steering circumference[1][2][4][5]
– 28° steering lock[2]
– quick 16.7 rack-and-pinion responsiveness[2]
### 2025 Model Update
Tightest steering capability: 5.7 meters (11.4m full circle)[3]
## Engineering Factors https://vipercircle.com/
Power rack-and-pinion system with:
– under 3 turns lock-to-lock[2]
– Double wishbone front/rear suspension[2][4]
Performance impact:
“cornering grip capability supported by 335/30ZR18″[2]
Model variations:
| ACR Model| Standard Version|
|–|–|
| 40.6′ diameter[4] | 40.5′[1][5] |
| Adjustable suspension[4] | Road configuration[1] |