NEWTON, Iowa — As NASCAR’s playoff picture sharpens, Iowa Speedway will serve as the latest proving ground in one of the sport’s oldest rivalries: the battle between Chevrolet, Ford and Toyota.

With just four races remaining in the NASCAR Cup Series regular season and the NASCAR O’Reilly Auto Parts Series nearing its postseason cutoff, all three manufacturers arrive at the 0.875-mile short track carrying momentum, championship aspirations and a roster of drivers capable of controlling the weekend.

The result is a rare three-pronged showdown where each manufacturer enters Iowa with a legitimate claim to being the one to beat.

“We’re ready to get back to racing after the off week,” Ricky Stenhouse Jr. said. “Iowa is a fun place to race because it’s fast, technical and the racing gets pretty intense.”

Toyota brings championship firepower

If consistency wins championships, Toyota enters Iowa in the strongest position.

Denny Hamlin leads the Cup Series standings heading into the weekend, while fellow Toyota drivers Tyler Reddick, Ty Gibbs, Chase Briscoe, Christopher Bell and Bubba Wallace all currently sit inside the provisional playoff field. Erik Jones remains within striking distance of a postseason berth.

Bell and Briscoe have emerged as two of the hottest drivers in the garage. Both have recorded top-five finishes in four of the past five races. Bell has three runner-up finishes in his last four starts, while Briscoe scored a victory at Chicagoland Speedway.

The strength extends beyond the Cup Series.

In the O’Reilly Series, Brandon Jones has already locked himself into the playoffs, while Joe Gibbs Racing teammates Brent Crews and Taylor Gray currently occupy transfer positions. William Sawalich sits just outside the postseason field and enters Iowa only seven points behind Gray.

Toyota’s presence will also be felt in ARCA competition. Max Reaves returns in the No. 18 Toyota Camry seeking his third ARCA Menards Series victory of the season, while Jake Bollman and Thomas Annunziata continue a championship battle separated by just three points.

Chevrolet seeks to defend home turf

While Toyota boasts championship depth, Chevrolet arrives with perhaps the strongest Iowa résumé.

The bowtie brand captured last year’s Cup Series race with William Byron, who has established himself as one of Iowa Speedway’s most successful drivers. Byron owns victories at the track in all three NASCAR national series and has never finished worse than second in two Cup starts at Iowa.

His record makes him an obvious favorite entering Sunday’s Iowa Corn 350 Powered by Ethanol.

Beyond Byron, Chevrolet has multiple storylines unfolding.

Carson Hocevar continues to build on a breakout season that has elevated him into the top five in the Cup standings. Stenhouse returns to the venue where he earned the first NASCAR national-series victory of his career and remains tied to Iowa history with three consecutive O’Reilly Series wins from 2011-12.

Now another Chevrolet driver is chasing that mark.

Sam Mayer has won the past two O’Reilly Series races at Iowa and can tie Stenhouse’s record with another victory Saturday in the Hy-Vee Perks 250.

Chevrolet also enters the weekend riding unprecedented success in the O’Reilly Series. JR Motorsports has amassed 14 victories through the first 22 races of 2026, including Carson Kvapil’s breakthrough win at Indianapolis. The organization also carries a record-tying streak of 79 consecutive races with at least one top-10 finish.

Ford banking on Iowa history

Ford’s Iowa legacy may be shorter, but it remains significant.

Ryan Blaney delivered Ford’s biggest moment at the track when he won the inaugural NASCAR Cup Series race at Iowa Speedway in 2024, leading 201 laps and adding another chapter to his success on short tracks.

Blaney, Joey Logano and Brad Keselowski are the only three drivers to finish in the top 10 in both Cup races held at Iowa, giving Ford a trio of proven contenders heading into Sunday.

The manufacturer enters the weekend with Blaney already locked into the playoffs and sitting third in points. Chris Buescher, Logano and Austin Cindric also currently hold postseason positions.

The urgency for Ford may be greatest among drivers on the bubble.

Ryan Preece sits just outside the cutoff line and views Iowa as one of his best opportunities to gain ground.

“Short tracks are my thing,” Preece said. “Even though there are four races left, I don’t go down until it’s done. I’ll keep swinging.”

Ford also boasts impressive Iowa credentials in NASCAR’s secondary series. Keselowski owns three O’Reilly Series victories at the track, while Blaney added another in 2015 before moving on to Cup success.

Playoff implications everywhere

The racing weekend comes at a critical point in the season.

Every manufacturer enters Iowa with something to prove.

Toyota is pursuing championships and trying to secure playoff positions across multiple series. Chevrolet is defending a Cup victory while continuing a dominant season in NASCAR’s developmental ranks. Ford is seeking to recapture the form that delivered the track’s first Cup triumph and strengthen its postseason presence.

Add in an aging racing surface, multiple grooves and the unpredictability that Iowa Speedway has become known for, and manufacturer bragging rights may be every bit as important as the race victories themselves.