Top photo: Cadillac Racing. Bottom photo: Mazda.

IMSA’s December test entry list features DPi, new Porsche public debuts

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After private testing has taken place for the two manufacturers who have revealed their Daytona Prototype international (DPi) models, Cadillac and Mazda, both cars’ public debuts will occur at next week’s December 13-14 IMSA WeatherTech SportsCar Championship at the Daytona International Speedway.

Additionally, the new Porsche 911 RSR is set for its first official public running.

Official names for the DPi cars are the Cadillac DPi-V.R and Mazda RT24-P, respectively, although on this first version of the entry list they’re just labeled as Cadillac DPi and Mazda DPi. The VISIT FLORIDA Racing entry is listed as a Multimatic Riley LMP2.

Those five cars headline the entries for the test, which also features 23 combined GT cars from GT Le Mans and GT Daytona (eight and 15 cars, respectively).

Photo: Porsche
Photo: Porsche

In GTLM, both Corvette C7.Rs, both Ford GTs, both Porsche 911 RSRs (the new model’s anticipated public on-track debut, following Los Angeles Auto Show launch, see above) and a BMW M6 GTLM and Ferrari 488 GTE apiece will test.

GTD sees entries from Audi, Lamborghini, Lexus, Mercedes-AMG, Porsche, Ferrari and Acura.

The full list is linked here.

Kubica, di Resta complete Williams F1 tests in Hungary

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Robert Kubica and Paul di Resta have both completed one-day tests for Williams in a 2014-spec Formula 1 car as part of the team’s evaluation for its 2018 line-up.

Williams is known to be considering a number of drivers to partner Lance Stroll at the team next year, including existing racer Felipe Massa.

Massa is thought to be going up against Kubica and di Resta for the 2018 drive, with the latter duo taking part in a private test at the Hungaroring in Budapest this week to aid the team’s evaluation.

After missing out on a 2018 Renault drive due to lingering questions about his physical condition six years after his rally accident, Kubica tested for Williams at Silverstone last week before getting back behind the wheel of the 2014 FW36 car in Hungary on Tuesday.

Kubica’s test was called “productive” by Williams, with the Pole handing duties over to Mercedes DTM racer di Resta on Wednesday.

Di Resta raced in F1 with Force India between 2010 and 2013 before returning to DTM, but made a surprise return at this year’s Hungarian Grand Prix with Williams when Massa was taken ill. Di Resta impressed on short notice, putting himself in contention for a full-time return to F1 in 2018.

Williams has one of the few remaining seats on offer in F1 for 2018, with Massa’s future known to be in question after a quiet campaign thus far.

The Brazilian had been due to retire from F1 at the end of last year, only for Williams to recall him after Valtteri Bottas’ late move up to Mercedes following Nico Rosberg’s surprise retirement.

Massa has made clear he would like to keep racing in F1 next year, but only if the deal is right and if Williams is determined to keep him.

While Massa, Kubica and di Resta appear to be the three leading contenders for the seat, Williams technical chief Paddy Lowe made clear in Japan there was a “large range” of drivers under consideration.

“You’ve probably seen a number of names that are floating around that we’re looking at, but honestly, the range is almost unlimited,” Lowe said.

“We will consider all ideas. We’re not in a super hurry to do so, and we’ll just make sure we land the best line-up we can.”