Brad Keselowski will drop two places in the NASCAR Sprint Cup championship after losing six points following his car failing a front ride-height test at the end of last weekend's race at Dover International Speedway.

Keselowski finished fifth in the race and earned 40 points from the event. The result stands, as NASCAR does not believe in retrospectively adjusting race results but instead handles infractions using penalties based on the deduction of points and the imposition of fines.

The loss of six driver points as well as six car owner points for Roger Penske is in line with the penalty handed out to Martin Truex Jr. for a similar breach of technical regulations by the #56 Michael Waltrip Racing team earlier in the season.

There had been concerns that Keselowski and the team could be handed a more severe penalty, as it was the first race back from suspension for crew chief Paul Wolfe who is still on NASCAR probation following the team being found to have used unapproved rear suspension components on the car at Texas.

The probation could have given NASCAR grounds for making the penalties much more severe. Instead, Wolfe himself gets a $25,000 fine and his probation will continue until the end of the current season.

The sanction notice cited breaches of Sections 12-1 (actions detrimental to stock car racing), 12-4J (any determination by NASCAR officials that the race equipment used in the event does not conform to NASCAR rules) and 20-12.8.1B (the car failed to meet the minimum front car heights during post-race inspection) of the 2013 NASCAR Sprint Cup rule book.

NASCAR may have thought twice before imposing even heavier penalties to make an example, after they lost two high-profile appeals recently on the grounds that the punishments originally handed out were too severe and not proportionate to the original offence.

In the case of Penske's appeal, suspensions on Wolfe and other key members of the team were reduced from six to just two Cup races. However, Keselowski's loss of 25 points for that infraction remained. (See story.)

In another appeal brought by Joe Gibbs Racing over a single engine rod being found to be underweight in Matt Kenseth's race winning car, almost all of NASCAR's sanctions were significantly reduced on appeal. (See story.)

On this week's occasion, NASCAR seemed to accept the Penske team's defence that a deficient part was responsible for the ride height failure, and shied away from another potentially bruising encounter with the appeals process quite so soon after the others.

Penske Racing said that on this occasion it would not be pursuing an appeals process regarding the penalty.

"The Penske Racing #2 Miller Lite Ford Fusion experienced a part failure during Sunday's Dover Sprint Cup Series Race which resulted in the car's front end being too low when presented for post-race inspection," the team said in a statement. "The problem is being addressed internally to ensure it does not occur again and the team is not planning to appeal the penalty."

Keselowski originally moved up to eighth place after the Dover event but now drops to tenth, two points behind Paul Menard and eight points ahead of Jeff Gordon.

Toyota Racing Development president retires

Lee White, the president of Toyota Racing Development which supplies engines to NASCAR Sprint Cup teams Joe Gibbs Racing and Michael Waltrip Racing, is to retire, the company announced Tuesday.

White has been with the company for 15 years and took over the presidency in July 2008, and was an enthusiastic proponent of Toyota's NASCAR program. He will step down immediately but will remain with the company as a special advisor through to the end of the year. TRD said that the decision was related to the need to tend to family health care needs.

"I have been planning and working toward retirement at the end of this race season in December," White said. "I have been offered and accepted an opportunity to perform a reduced amount of duties from my home office. This generous arrangement afforded to us by the company will allow me to attend to personal family priorities."

White was involved in the JGR appeal against harsh sanctions for an underweight an connecting rod in the Toyota engine in Matt Kenseth's race-winning car at Kansas. White has also been fielding criticism over the durability of the Toyota engines in the Cup cars over the last two season.