3:30 pm - The afternoon test session is over and Greg Biffle owns the fastest lap of the day at 189.427 mph. Points leader Jimmie Johnson is send at 189.142 mph. Mark Martin, Carl Edwards and Kevin Harvick complete the top 5.

1:54 pm - As far as Denny Hamlin is concerned, he is surprised by the $25,000 fine for what he said at Phoenix, he has no idea where NASCAR was coming from with the fine and he has no plans to discuss competition in public anytime in the near future. In other words, he is, most definitely, not okay with it. “This is the most upset and angry I’ve been in a really, really long time about anything – anything that relates to NASCAR,” said Hamlin during the short lunch break at the speedway. “The truth is – is what the truth is. I just don’t believe in this. I just don’t believe in this. I’m never going to believe in it. As far as I’m concerned, I’m not going to pay the fine. If they suspend me, they suspend me. I don’t care at this point.”

According to NASCAR’s vice president for competition Robin Pemberton, Hamlin has the option of appealing the fine through the usual channels. “This isn’t any different than an illegal part or piece.”

12:00 pm - The morning test session just ended with Matt Kenseth still atop the speed chart at 187.396 mph. Edwards and Harvick are still second and third. Martin Truex Jr jumped up to 4th and Dale Earnhardt Jr rounded out the top 5.

11:30 am – It will cost Denny Hamlin $25,000 for voicing his opinions about the Gen 6 car and (apparently) its ability to pass after last week’s race at Phoenix. NASCAR failed to specify which comments they were holding Hamlin accountable for but the official statement characterized them as “disparaging remarks about the on-track racing.” Following the second race of the season, Hamlin commented that the generation 5 car raced better than the new version.

10:30 am - Mark Martin was the first on track for this morning’s test session. Martin won the inaugural Cup race here at LVMS in 1998. With two hours in the books, Matt Kenseth is fastest at 187.396 mph. Carl Edwards, Kevin Harvick, Dale Earnhardt Jr and Juan Pablo Montoya round out the top 5. Mark Martin and Kyle Busch are 7th and 8th on the monitor.

And since this is officially a test session, the cars on track today may or may not be the ones going through the official tech line tomorrow morning. The teams have the option of rolling a different car off the hauler for this weekend’s event.

8:35 am - Good morning from Las Vegas Motor Speedway – America’s Racing Showplace! The haulers paraded down the Strip last night, the crews are settled into the garage and it’s time to take care of business. The Sprint Cup Series teams will have six and a half hours to prepare the Gen 6 cars for the challenge of this 1.5-mile speedway in the desert. The track is open from 8:30 am until 3:30 pm, with a half-hour break at noon for lunch.

The grandstands are open and admission is free. Fans at the speedway are encouraged to check out the brand new Kobalt Social Media Command Center in the Neon Garage. View real-time social media feeds from drivers, race teams, sponsors and fans on monitors. Drivers and celebrities will meet and greet fans in the command center throughout the weekend. Free wireless access is available for all around the Command Center’s perimeter.

Tickets for Saturday’s Sam’s Town 300 and Sunday’s Kobalt Tools 400 are available by calling 800-644-4444 or visiting www.lvms.com. Fans can still purchase Neon Garage passes, Lucky 7 preferred parking and driver introduction passes.

If you can’t join us in person, keep it tuned here for updates throughout the day and weekend.