Graphic: Backfire Racing.
While drafting exists in both NASCAR and open-wheel racing, the way it works and its impact on racing differs significantly due to fundamental differences in car design.
Body Style and Air Disruption
NASCAR’s full-bodied stock cars create a larger, more disruptive wake than open-wheel cars, meaning the draft effect is generally more pronounced and the pack racing dynamics discussed in how drafting works in IndyCar take on an even more exaggerated form in NASCAR’s superspeedway events.
Restrictor Plates and Tapered Spacers
NASCAR has historically used restrictor plates and now tapered spacers at its fastest tracks specifically to limit horsepower and keep speeds in a range where close, tight pack racing remains both possible and manageable from a safety standpoint.
The Bump Draft
NASCAR’s stock cars allow for a unique tactic called the bump draft, where a trailing car gently nudges the car ahead to help push it forward, a maneuver that isn’t feasible in open-wheel racing due to the exposed wheels and much greater risk of a launching incident.
Why Racing Style Differs as a Result
These differences mean NASCAR superspeedway racing tends to produce larger multi-car packs with more frequent close racing throughout the field, while open-wheel drafting battles are often more contained to smaller groups fighting for specific positions.
Why Both Forms of Drafting Captivate Fans
Despite their differences, both forms of drafting reward similar skills, patience, timing, and controlled aggression, making draft-heavy racing among the most tense and unpredictable racing either discipline produces.