It's time for Power Rankings! After every race, we'll opine about who we think is at the top of the Sprint Cup heap and how and why they got there. Remember, this isn't scientific, as our formula is the perfect blend of analytics and bias against your favorite driver. So let's get on with it, shall we?

1. Jimmie Johnson (LW: 1): Should we start the Power Rankings at No. 2 for the foreseeable future? Because much like Dover, Jimmie Johnson didn't do much to make a case for himself anywhere other than the top spot. Yeah, Chad Knaus's pit strategy ended up having to make the No. 48 cut through the field a lot (and may have ultimately been the team's downfall), but let's look on the flipside of that for a second. With the increased speeds of the new car, track position and clean air have become very important and we've heard drivers talk about how it can be difficult to pass in traffic. Guess what? Johnson didn't get stalled in traffic on Sunday and they likely learned a lot about how

The Daytona redesign. (Courtesy Daytona International Speedway)

International Speedway Corporation has announced that it will undertake a massive redevelopment of NASCAR's flagship track, Daytona International Speedway, in a three-year project that will completely revamp the look and feel of the track.

The project will begin with a ceremonial groundbreaking in July, and is expected to be completed in time for the 2016 Rolex 24 and the Daytona 500, at an estimated cost of $375 million to $400 million.

The goal is to create a more fan-friendly (and safe) environment that allows for both fan interaction and good racing sightlines. According to the plan, five "injectors" along International Speedway Boulevard would route fans to one of several concourse levels. From there, fans could visit several "neighborhoods," each the size of a football field, to socialize as they watch the race either live or via video screens.

DIS will replace every seat in the frontstretch with wider, more comfortable seats. The backstretch grandstands will be torn down. The final

Geoffrey Miller and I talk about the bizarre Michigan race that saw four of the fastest cars eliminated via issues at one point or another during the race, Greg Biffle's post-race jubilation and there's some fun stuff in there, I promise.

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At one point during Sunday's Quicken Loans 400 at Michigan, Hendrick Motorsports cars were running 1-2-3. No, they didn't finish in those positions. Not even close.

In fact, it turned into a bad day rarely seen around the Hendrick camp. How brutal was it? Well, it was the first time since Sonoma in 2005 that a Hendrick car didn't finish in the top 25.

Kasey Kahne, Jimmie Johnson and Dale Earnhardt Jr. were occupying those top three spots when Kahne suffered a right front tire failure on lap 104. The flat occurred as Kahne entered turn one and his car immediately shot to the right and towards the outside wall where his engine burst into flames upon impact.

Kahne immediately emerged from his car and walked away. He finished 38th.

Where was Jeff Gordon, you ask? We'll get to him in a moment.

After the ensuing pit stops under caution, Earnhardt Jr. took the lead and he held it until lap 128 when his engine started to go sour. Johnson passed him for the lead and then a short while later,

Greg Biffle celebrates after his fourth Michigan win. (Getty)

After a late tire-issue for Jimmie Johnson, Greg Biffle cruised to the checkered flag for his second Michigan win in a row on Sunday and first victory of the season.

Biffle was in command of the race after the final restart but was feeling pressure from Johnson, who was closing. Did he have enough time to catch Biffle? With two laps to go and Johnson trailing Biffle by under a second, he lost a tire in the middle of turns one and two and his car skated up towards the wall.

The right side of the car was pancaked. Johnson's chances at the win were toast, and Biffle finished more than four seconds ahead of Kevin Harvick.

"I love it when the 48 crashes trying to catch me. Love it," Biffle exclaimed over the radio after crossing the finish line.

He explained his comment on the radio later -- Johnson came through the field to the front numerous times Sunday and said he had to drive really hard over the last segment of the race to get near Biffle.

"Well, let me clarify that a little bit"

For its entirety, Saturday's Nationwide Series race at Michigan was a race against the rain. In those cases, a faster race is, for obvious reasons, better. On lap one, it didn't get off to an auspicious start.

Alex Bowman was on the inside of Brian Scott and got loose and spun. At essentially the same time just a few cars back, Travis Pastrana spun as well. And then between them, Brian Vickers spun towards the grass after making contact with Joey Logano.

Bowman, Pastrana and Vickers also crashed last week at Iowa. That too, was our craziest moment of that race. Nice congruity, eh?

Jeffrey Earnhardt was also collected in the crash. And while some teams' in-race strategy hinged on the impending arrival of precipitation, the race was run in its entirety. Regan Smith was your winner, and Kyle Larson finished second.

Carl Edwards, pole position. (Getty Images)

Carl Edwards has won his first pole via qualifying in more than a year, but not without a bit of nerve-wracking pre-qualifying drama.

Early Friday, a few hours before qualifying began, Edwards went for a run and locked his keys in his rental car. What to do? The rental car company was no help. After some scheming and plotting, Edwards and his PR agent found a local used-car dealership, coaxed out a mechanic who had a few coathangers and a crowbar, and broke into the car.

"It kept my mind off the stress of qualifying," Edwards laughed. "It was a little adventure. Jimmy (Fennig, crew chief) says I should go running more often. If he had known how close I was to not making it back I don’t think he would say that.”

So who was this mysterious savior-with-a-crowbar who helped one of NASCAR's finest drivers break into a car? "I don’t want to call the guy out," Edwards said. "I mean he did use a crowbar to break into the car. I didn’t ask him how he knew how to do that so well."

The irony of

(Getty Images)

An autopsy has concluded that driver Jason Leffler died of blunt-force trauma to his neck, an injury sustained during a wreck Wednesday night at Bridgeport (N.J.) Speedway.

[Related: Jason Leffler's death a reminder how far NASCAR has come]

Leffler's car struck the wall at Bridgeport following a tire blowout, according to witnesses at the track. Leffler had to be extricated from the wreckage and was airlifted to a local hospital. Authorities have not released details about Leffler's condition when he was extricated from the vehicle.

Blunt force trauma is the application of extreme force to the body, and is distinguished from penetrating trauma, in which an object enters the body. It is the same cause of death as IndyCar driver Dan Wheldon, who died of blunt force trauma to the head during an IndyCar race in Las Vegas in 2001. Dale Earnhardt Sr., by contrast, died of a basilar skull fracture, though the proximal cause, collision with an immovable object, was the same as in Leffler's