Sixty-seven GT3 cars are set to take part in the official test day for the Total 24 Hours of Spa, which is set for July 5.
Besides the regular cars and faces, there are also some new teams and lineups making use of the eight hours of scheduled track time on the Spa-Francorchamps circuit.
ENTRY LIST: 24H of Spa Test Day
Both the Audi Sport factory R8 LMS GT3s run by WRT and Phoenix Racing will be present, which will result in some shuffling around within some of the Audi driver lineups, although the number of Audis entered by WRT will remain at five.
All four AMG factory supported Mercedes-AMG GT3s will test, with the entry list confirming the addition of Maro Engel to the No. 00 Black Falcon entry, but leaving the drivers in the No. 86 HTP car to be confirmed.
Keven Estre joins the sole Attempto Racing Porsche 911 GT3 R (Pro Am Cup) that suffered a fire at Paul Ricard last weekend.
The Test Day will also mark the first appearance of the second Emil Frey Racing Jaguar G3 chassis, which will be raced by Christian Klien, Jonathan Hirschi, and defending champion Markus Palttala
Konrad Motorsport returns to the series and is set to run two Lamborghini Huracán GT3s next week, while Easy Race is a newcomer and entered a Ferrari 488 GT3 with an Am Cup lineup.
AF Corse brings no fewer than nine Ferraris to the Ardennes; four 458 Italia GT3 and five of the new 488 GT3.
The Official Test Day is also open to teams running in the Blancpain GT Sports Club and British GT championship, each represented by four cars.
There are no entries for the resurrected Group N category so far.
The grid for the Total 24 Hours of Spa is expected to be in excess of 60 cars.