For the first time in ages, IndyCar’s Silly Season has paled in comparison to the news and intrigue taking place in American sports car racing. In particular, IMSA’s WeatherTech SportsCar Championship has been speeding through a busy (and short) offseason where simply keeping track of car and driver movement has been a challenge.

We’ve dedicated plenty of ink to ongoing paddock developments since the 2015 WeatherTech Championship season wrapped on Oct. 3, and with more changes – and confirmations – on the horizon, here’s a look at where IMSA’s Silly Season has taken us and could be headed.

The highest volume of potential changes have been found in IMSA’s Prototype and GT Daytona classes, and starting with the series’ top category, the Action Express Racing team could be one to follow in the coming weeks.

It involves using a process of elimination, but if we look to the confirmation that Scott Pruett will be in a Prototype for the Rolex 24 at Daytona in January, and peel away the teams and entries that wouldn’t fit his specific quest to capture a record-setting sixth overall win, the championship-winning No. 5 AXR Corvette DP could be the leading candidate to help the Californian achieve his dream.

Browsing the Prototype entrants for openings, Wayne Taylor Racing is expected to continue with its lineup of the Taylor brothers and Max Angelelli. Spirit of Daytona is expected to have Marc Goossens and a driver-to-be-named filling its pair of full-time vacancies (Mike Rockenfeller is in the running to return as its endurance driver). Michael Shank is searching for funded drivers to complete his Rolex 24 roster and, despite their brief association in the 1980s, it’s unlikely Pruett would approach Mazda for a P2 seat.

AXR’s No. 31 Corvette DP already has three drivers (Dane Cameron, Eric Curran, and Sunoco Whelen challenge winner Jonny Adam), which leaves AXR’s No. 5 as the logical place for Pruett among the contenders because Sebastien Bourdais (middle, RIGHT, with co-drivers Joao Barbosa and Christian Fittipaldi) departed his endurance seat in the car to fulfill the same role for Ford. With Pruett’s penchant for Daytona Prototypes, plus the known endurance opening in the No. 5, it would be a perfect destination for the driver I refer to as “not my brother.”

Continuing the AXR thread, even if Pruett joins the No. 5 at Daytona, the team would still need a consistent replacement for Bourdais in the Tequila Patron North American Endurance Cup rounds, and I’ve heard rumors regarding drivers from two factory FIA WEC P1 teams mentioned as long-haul options for the No. 5. If Pruett’s thrown into the mix, it could mean the team carries four drivers for the Rolex 24.

AXR team manager Gary Nelson recently confirmed the team was evaluating its manufacturer options when IMSA switches over to P2s and GT3-based engines for 2017. Following the announcement of Pruett and Paul Gentilozzi combining to lead a new Lexus GT3 program in 2016, it’s worth asking whether an AXR-Lexus tie-in could be in the works when the new Prototype formula debuts.

Michael Shank Racing continues to work with Memo Rojas to place the Mexican driver in a second Ligier JS P2-Honda. Shank rated the chances of running Rojas as “50/50” in a call this week, and is aiming to field the second P2 in more than just the NAEC.

Just as AXR has an endurance seat to fill thanks to Ford, SDR has also lost one of its drivers – Richard Westbrook – to the Blue Oval. Although Westy has landed comfortably, SDR’s Michael Valiante has just started his pursuit of another drive after splitting with the team.

One of the most exciting efforts I’ve been tracking and hoped to see materialize has cooled to the point of being a non-starter. Team Penske had been working on a Rolex 24 at Daytona program, and looked into both DP and P2 options, but according to Penske Racing president Tim Cindric in an update on Monday, “we made some inquiries but there weren’t any right opportunities for it to happen.”

It’s believed an ORECA 05, as well as a Corvette DP, was under consideration by Penske for its first run at Daytona since representing Porsche in 2009 (ABOVE). On a personal note, Cindric’s son Austin, who races in IMSA’s Continental Tire Series, recently sampled a Corvette DP and is searching for Rolex 24 rides. And on a non-Cindric note, at least one Penske IndyCar driver has been rumored to be driving for an existing Prototype team at the Rolex 24.

Mazda is expected to run its new gas-powered turbo engine at the official IMSA test at Daytona on No. 17-18, which could lead to final confirmation of its shift from turbodiesels. Starworks Motorsport hopes to have its Riley DP on the grid for the Rolex 24.

Championship-winning PC team PR1/Mathiasen could join the Prototype field with Honda Performance Development’s ARX-04b P2 chassis, as HPD VP Steve Eriksen recently confirmed.

IMSA’s PC class is always busy when it comes to driver changes. CORE autosport is expected to unveil a campaign that looks incredibly consistent, and beyond the defending class champions, it’s hard to pinpoint how many cars or where most drivers will start the season. One loss is expected as longtime Starworks driver Mirco Schultis is unlikely to continue after family and business needs have arisen in Europe.

GT Le Mans has been a frequent source of silly season fun with the incoming Chip Ganassi Racing Ford program set to name six drivers for its pair of GTLM GTs.

If I had to guess on Ford’s IMSA lineup, I’d place dear friends (and former BMW teammates) Joey Hand and Dirk Muller (RIGHT) in one car with Bourdais. And in the second Ford GT, I’d think a roster of Ryan Briscoe, Richard Westbrook, and Marino Franchitti looks pretty sharp. All six have either been seen at tests or belong to the worst-kept-secret-in-the-paddock club.

Walker Racing’s place in the GTLM paddock is not expected to continue after Falken Tire wound its program down, but the team has spoken with multiple German manufacturers and at least one Japanese brand about collaborating on new projects. One great piece of news I’ve heard is former Walker Racing driver Bryan Sellers was snapped up for a full-time drive, although it’s unclear which team or class he’ll call home.

2014 GTLM Drivers’ champion Kuno Wittmer, who formed a successful working relationship with Christina Nielsen at TRG-AMR in GT Daytona, is said to be headed back to GTLM. Unconfirmed reports have the French-Canadian taking an endurance role with BMW Team RLL.

GTD is where the biggest flurry of action has occurred, and with more than a few driver and car confirmations hanging in the balance, IMSA’s Pro-Am GT class is ripe for more Silly Season goodness.

Audi went from losing its only full-time team (Paul Miller Racing) to Lamborghini to adding Magnus Racing and helping Stevenson Motorsports return to top-tier GT competition with its new-for-2016 R8 LMS in less than a month. Aston Martin, through its partner team TRG, announced its Pirelli World Challenge plans for 2016, but with the need to pay IMSA’s official manufacturer fees, and Nielsen likely headed to Scuderia Corsa, the glorious sound of TRG-AMR’s GTD V12 Vantage (ABOVE) could go silent unless two major issues are resolved.

Ben Keating is searching for funding to keep his second Riley Dodge Viper in action, Alex Job Racing showed off its new Porsche 911 GT3-R in WeatherTech colors and Lamborghini’s armada of entrants have plenty of driver confirmations to make.

There are more teams to cover in GTD, PC, GTLM, and Prototype, and we’ll save some of the brewing news for our next IMSA Silly Season installment.