William Byron has openly endorsed NASCAR’s recent decision to increase the Cup Series car horsepower to 750 for road courses and tracks under 1.5 miles, a move set for its debut during the Sunday race at Circuit of the Americas (COTA). This William Byron NASCAR horsepower increase is generating strong reactions across the garage, as drivers adapt to a more powerful setup aimed at invigorating competition.
Drivers Embrace Extra Power as Change Debuts at Circuit of the Americas
NASCAR announced last year that starting in the 2026 season, races at road courses and selected short tracks would see a jump in horsepower from 670 to 750. As practice kicked off at COTA, drivers experienced the change first-hand. William Byron, representing Hendrick Motorsports and set to start 10th, was quick to highlight the positive impact, suggesting that the additional power felt perfectly suited to the current car design.
Byron explained that the former horsepower rating left cars feeling sluggish, but the new figure has delivered improved throttle response and more rewarding acceleration. Expressing his enthusiasm, he said,
“It feels good. It feels like what this car naturally needs. Like, it felt like the power we were on before felt low and boggy.”
He continued,
Now, the power is crisper, and it just feels like you’re getting down the straightaway a little bit cleaner,
William Byron, Hendrick Motorsports driver.
Byron also pointed out that even a modest boost in output provides enough difference for drivers to fine-tune their shifting and throttle application, which could translate into new strategies during races. NASCAR’s leadership faced ongoing pleas from nearly all drivers to upgrade the power, ultimately relenting after a lengthy debate within the paddock.
This sentiment was echoed by other competitors including Chase Elliott, Ryan Blaney, and Kyle Larson, who all voiced support for the horsepower increase. However, Larson continues to question whether it will increase opportunities for overtaking, casting some doubt on how much the racing product will change compared to previous seasons.
Tire Wear Becomes Increasingly Crucial with More Horsepower
At COTA, the ability to manage tires is expected to become even more critical. Last year, the outcome hinged on tire strategy when Kyle Busch lost the advantage during a late restart because his tires were a couple of laps older than those of rival Christopher Bell, who then powered past and took the win. This example underscores how even small differences in tire wear, especially with increased horsepower, can dramatically alter the finishing order.
Busch shared his thoughts with Speedway Media, predicting strategic pit stops late in the race could play an even greater role this season. He said,
You might see guys, if there’s a late caution with 10 to go, that got three or four laps old tires might come, pit, and try to drive back through the field and hope that the front guys burn their stuff up. Fresher tires more times than not, especially with more horsepower, you’re going to want them.
Kyle Busch, NASCAR driver.
Both Busch’s perspective and the experiences from last year’s race demonstrate that with the new horsepower, teams will be challenged to find the perfect balance between speed and tire durability. The potential for unexpected strategies or comebacks late in the event is now higher than ever.
Anticipating the Impact of NASCAR’s Horsepower Strategy
As the 2026 Cup Series season unfolds, the focus remains on how the increased horsepower package will shape racing at venues like Circuit of the Americas. William Byron’s positive reaction sets the tone, but only after several races will it be clear if the move has made competition more compelling for both drivers and fans. With tire management, strategic pit stops, and the ongoing quest for overtakes all under a new spotlight, NASCAR teams and drivers such as Christopher Bell, Kyle Larson, Chase Elliott, Ryan Blaney, and Kyle Busch will be looking to adapt quickly to maximize their results at COTA and beyond.
.@RyanPreece_, @KyleLarsonRacin and several other drivers shared their thoughts on the 750hp package and how it might work on the road course this weekend.#NASCAR pic.twitter.com/ns84Sqrs4b
— Frontstretch (@Frontstretch) February 28, 2026
