Who holds ultimate responsibility for a car's ultimate performance – a racecar driver or the engineer who developed it?
It's a question that has resonated around the bunkers at top-secret test tracks over the years as car makers scramble to extract crucial milliseconds from their vehicles and stay ahead of the field.
Some brands employ race drivers to help evaluate and develop vehicle dynamics, and some engineers end up competing in high-profile events like the Nurburgring 24-hour race.
A racecar driver will typically blame their equipment when things aren't going well, while an engineer will naturally question whether their creations could be pushed any harder.
Fairfax Media has sought to answer this age-old question with a pertinent, straightforward test: a race.
We've pitted three-time Bathurst winner and V8 Supercars champion Garth Tander against Rob Trubiani, Holden's dynamic engineer and the man who recently piloted an SS-V Redline ute around the Nurburgring in a blistering time.
The two combatants go head-to-head in a drag race before a no-holds barred lap of the famous Phillip Island circuit in Victoria, Australia, both aboard Holden's new VF Redline ute.
Just how close they are will surprise you, but you'll have to watch the video to find out which one wins...
-Fairfax News Australia