AUSTIN, Texas (AP) — The third season for Haas F1 has been its best, even if it has been a bit bizarre.
Formula One's only U.S.-based team has the most points in its young history and it has overcome some serious bumbles early to compete with — and beat — some of the legacy teams.
Haas heads into this weekend's U.S. Grand Prix in a season-ending fight with Renault for the "best of the rest" title among teams outside of the Big Three of Mercedes, Ferrari and Red Bull.
"It's the best battle of the field. It's very tight. It's going to go to the last lap of the race in Abu Dhabi, while I think the world championship is probably going to go this weekend," said French driver Romain Grosjean, who signed with Haas before its first season.
"To rise as quickly as we've done hasn't been seen in Formula One, I don't think," said his Danish teammate, Kevin Magnussen.
Team owner Gene Haas sounded less impressed Friday.
"We are more stable then we've been in the past. Better communication, better results," he said. "Unfortunately we haven't had the results we should have. The potential is there. I feel good about that."
Haas F1 got off to a surprising start, earning points in its first race in 2016, and in 2017 had both cars finish in the top 10 for the first time at Monte Carlo, the biggest race on the calendar. A strong run over the last 10 races of this season has Haas just eight points behind Renault in the race for fourth place with four races left.
The 2018 season looks to finish better than it started.
After the team's best-ever qualifying at the Australian Grand Prix, neither Haas car finished the season-opening race. Magnussen and Grosjean both left pit stops with unsecured wheels and had to stop. The team was fined.
"That was extremely, extremely disappointing" Magnussen said "We are still showing signs of immaturity at certain moments."
A month later in Azerbaijan, Grosjean fought his way from the back row into sixth before he drove straight into the wall while following a safety car. Grosjean blamed one of the season's most bizarre incidents on an errant flip of a steering wheel switch that he said upset the car's brake balance and sent him spinning into the barrier.
More valuable points were lost in Italy when the floor of Grosjean's car was deemed illegal and he was disqualified from sixth place. Haas appealed and is awaiting a decision on points that would close the gap with Renault with a stroke of a pen.
Despite the gaffes, Grosjean has finished in the top 10 four times in the last seven races.
"I got eight points stolen in Monza," Grosjean said. "The results are coming with the kind of performance Haas signed me for in the first place."
After the problems, Grosjean admitted it was a relief to extend his contract with Haas for 2019. He and Magnussen will be teammates again.
"When I joined, I didn't know what Haas was going to be. I think they gave me some credit for that when I had a tough time earlier this year and turned things around," Grosjean said.
Team Principal Guenther Steiner said he and Gene Haas saw value in staying with drivers who knew the Haas cars.
"Just to change a driver for the same level of skill, you go backward," Steiner said. "There's not a lot of better drivers out there, so why should we change them? Stay the same and mature quicker."
The question now is how high can Haas go?
The Haas business model — which has drawn complaints from its middle-of-the-pack rivals — has it buying parts and engines, most notably from Ferrari. It keeps costs down but creates a performance ceiling Haas is unlikely to break through.
"We are not developing parts for our car," Grosjean said. "So far it hasn't been a problem. If one day we start to beat Ferrari, it's not going to work."
Gene Haas was seems resigned to the idea that fourth could be the best Haas F1 can do against teams with much bigger budgets, development and staff.
"We're not really racing Formula One. We're racing Formula 1.5," Haas said. "When I watch some of the races and see how the top three teams blow by us, I'm somewhat aghast."
That can be the frustrating part of an otherwise very good season. A taste of success begs for more. For the 26-year-old Magnussen, he can be good with Haas, maybe even the "best of the rest." But that's a career definition no driver wants.
"It's been six years since I won a race in motorsport," Magnussen said. "I miss winning. Badly."
More AP Auto Racing: https://apnews.com/tag/apf-AutoRacing and https://twitter.com/AP_Sports
Follow Jim Vertuno at https://twitter.com/jimvertuno