41 cars are on the entry list for the British GT’s annual trip to continental Europe, with five guest cars adding to the already huge full-season selection of GT3 and GT4 machinery.

15 GT3 cars and 26 GT4s will head to the Ardennes for the two-hour race that could have huge implications on the title battles.

In GT3 Aston Martin factory driver Darren Turner makes his first British GT start since September last year. He will race debutants Tony Quinn and M2 Competition in its Vantage GT3.

Elsewhere there is one notable absentee from the entry list: clashing Le Mans Cup commitments have forced Beechdean AMR to skip Spa. Its Aston will race in Barcelona on the European Le Mans Series support bill, and return to British GT action at Brands Hatch.

GT4’s entry is huge, with 26 cars, the same record number it had at Silverstone earlier this year. And there are some notable race-by-race entries bolstering the category.

Swedish squad Alfab Racing has entered a McLaren 570S for Erik Behrens and Daniel Ros. The same combination currently competes in GT4 Scandinavia, while the team also has recent experience of racing in the GT4 European Series.

And three race-by-race competitors also make their final appearances of the season: ERC Sport’s Peter Belshaw and Maximilian Buhk, Balfe’s Am/Am McLaren shared by Mia Flewitt and Stewart Proctor; and Track Focused’s KTM driven by father and son duo Alexander and Ross McEwan.

There are driver changes too. Three-time World Touring Car champion Andy Priaulx is joining six-time Olympic gold medallist Sir Chris Hoy aboard Multimatic Motorsports’ #19 Ford Mustang. The same car and Am driver won the Pro/Am class with Billy Johnson last time out.

Of the full-season entries, Brent Millage teams up with Dino Zamparelli in GT Marques’ Porsche and HHC’s Luke Williams is joined by Ginetta GT5 Challenge front-runner Ruben Del Sarte.

The title fights will heat up at Spa. A big points’ haul at Spa would give current GT3 leaders Adam Balon and Phil Keen (Barwell Motorsport) plus GT4 leaders Seb Priaulx and Scott Maxwell (Multimatic Motorsports) a chance to wrap up their respective championships with a round to spare at Brands Hatch next month.

The British GT race is set for Sunday at 12:30 local time.

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