Tutorial: how to choose steering wheel shape — round vs flat-bottom (D-shape). Ergonomics, aesthetics, entry/exit ease, and best use cases for each shape.
Choosing between round and flat-bottom (D-shape) steering wheel is an aesthetic and ergonomic decision. Both shapes function identically, but they suit different vehicle characters and driver preferences. This tutorial explains the differences and helps you choose the right shape for your build.

Flat-Bottom D-Shape — Motorsport-Inspired Design
| Property | Round | Flat-Bottom (D-Shape) |
|---|---|---|
| Entry/Exit Ease | Standard | Excellent (clearance for legs) |
| Visual Reference | Less defined | Clear (flat = 6 o'clock) |
| Aesthetic | Classic, luxury | Performance, motorsport |
| OEM Users | BMW base, Mercedes base | BMW M, AMG, Audi RS, Porsche GT |
| Price | Same as flat-bottom | Same as round |
| Best For | Luxury, daily, classic | Performance, track, aggressive |
Round for classic luxury, flat-bottom for motorsport performance. Both available at no additional cost. Configure your wheel today.
Round (Classic Luxury) | Flat-Bottom (Motorsport)
No, flat-bottom has minimal effect on steering feel. The flat section is at 6 o'clock, which is rarely gripped during normal driving. The primary benefits are ergonomic (easier entry/exit with bucket seats) and aesthetic (motorsport look). Choose flat-bottom for these benefits, not for performance gains. Configure your shape.
Flat-bottom is available for most CarbonTailor-compatible vehicles, including BMW M, Mercedes-AMG, Audi RS, Porsche, Corvette, Dodge, Honda Type R, and Nissan GT-R. Some luxury vehicles (BMW 7 Series, Mercedes S-Class) may only support round. Check your vehicle's product page or browse collections for availability.
CarbonTailor — Custom Carbon Fiber Automotive Accessories | carbontailorinfo@gmail.com | +1 (971) 326-5921
Thanks for subscribing!
This email has been registered!
| Product | SKU | Description | Collection | Availability | Product Type | Other Details |
|---|