CHARLOTTE, N.C. (AP) -- Say goodbye to the NASCAR era when a driver, fresh off a satisfying, top-10 finish, climbs from the car and raves about what a good points day it was.
Winning is all that matters under the latest and most radical change to the Chase for the Sprint Cup championship.
NASCAR's overhauled championship format announced Thursday is a 16-driver, winner-take-all elimination system designed to reward ''the most worthy, battle-tested'' driver at the end of the season.
''Riding around and being pleased because the (previous) format rewards consistency, those days are going to be pretty much over,'' NASCAR Chairman Brian France said.
The field, expanded from 12 to 16 drivers, will be whittled down to a final four through eliminations after every three races of the 10-race Chase. The remaining four drivers will go into the season finale with an equal chance to win the championship: The first of the four to cross the finish line will be crowned Sprint Cup champion.
''No math. No bonus points. It's as simple as it gets,'' France said.
It's the fourth change to either the points or championship format since France created the Chase in 2004. For 28 years prior to the Chase, consistency reigned as the champion was the driver with the most points at the end of the season.
That ended a year after Matt Kenseth won the 2003 title with a single victory, and France began his pursuit of creating ''Game 7 moments.'' Along the way, he has pushed his agenda of wanting aggressive drivers chasing wins.
He'll get that under the new format, which makes settling for points pretty much pointless.
Why? Because a win in the 26-race regular season virtually guarantees a berth in the Chase. Then, eliminations begin, and a driver can guarantee a trip to the next round with a victory.
Last August, Brad Keselowski chased Kyle Busch around Watkins Glen and declined to aggressively move his rival out of the way. Keselowski settled for second, racing for a good points day and declining to inflame his touchy relationship with Busch. But in doing so, he failed to win a regular-season race and missed the Chase, making him ineligible to defend his title.
Under the new format, a winless Keselowski would have no choice in that same situation but to bang fenders with Busch and go after the win.
That's exactly what France wants to see on the track each week.
''This is pretty clear: You have to win, you have to compete at a higher level, you have to take more chances,'' France said.
France said he expects contact among cars.
''Obviously there are some limits, but that's always part of NASCAR, to have some version of contact late in the race,'' he said. ''Will this bring more of that? I'm sure it will.''
The changes were lauded by Julie Sobieski, vice president of league sports programming for ESPN, which will broadcast all 10 Chase races this year.
''We have long felt that there was a greater opportunity within the Chase and are in favor of an elimination format, which has been most effective in American sports,'' she said.
Teams and drivers were briefed by NASCAR on the changes, and reaction was mostly positive.
''This took guts, this is a big deal,'' said team owner Joe Gibbs, who saw his three Cup drivers combine for a series-best 12 wins last season.
Busch, who won four races and finished fourth in the standings, wasn't as effusive.
''I don't like to always be the Debbie Downer ... but some of the things they are doing, I'm not in agreement with,'' Busch said, declining to be specific because he spoke before NASCAR unveiled the format.
He noted that Keselowski would have had incentive to wreck Busch at Watkins Glen, and said there are other scenarios NASCAR must now consider. He referred to last season, when, Kenseth opened the Chase with a win at Chicago, where Busch followed his teammate across the finish line for a 1-2 finish for Gibbs.
They again went 1-2 at New Hampshire the next week. But in the new format, that's not necessarily good enough. Busch would instead be looking to win in such a scenario to ensure a trip to the next round.
''I'm chasing him down to try to get to him, and if I got to him, I could have moved his (butt) out of the way to get a win and knock me into the next round of playoffs. Matt didn't need it,'' Busch said. ''Those situations are what NASCAR is looking at. They are not wanting, 'Let's just race to the checkered and not cause any drama and have a good points day.'''
Another twist: In the Kenseth-Busch scenario, it would have been in the best interest of Joe Gibbs Racing for Busch to win and, because the points reset after each round, meaning multiple victories by a driver in the Chase has no benefit - the team would have incentive to orchestrate a Busch victory over Kenseth.
''That would be a NASCAR gray area that they'd have to make a judgment call on,'' Busch said.
NASCAR last year issued severe sanctions against Michael Waltrip Racing for trying to manipulate the finish of the last race of the regular season. The scandal led France to angrily warn teams they must all give 100 percent at all times, and laying down to help a teammate or technical partner would not be tolerated.
NASCAR President Mike Helton said nothing will change in race control and how officials enforce the rules.
''We'll officiate the sport the same way,'' Helton said. ''We get the fact that this puts pressure on us officiating, and we feel like we're capable of stepping up to it.''
France said extensive research done by NASCAR showed the new format appealed to fans because it eliminates points racing.
''The avid fans like it because they don't particularly care for points racing, even though they understand it,'' France said. ''The casual fans don't understand points racing ... often, with all the mathematicals, you've got to have a computer next to you to figure out who is in and who is out at a given moment. (This) clears all that off and then emphasizes winning, which everybody understands.''