Harry Tincknell will make a one-off Formula 3 return to contest the Thruxton round of the British series with Double R in August.
Tincknell, who finished fifth in European F3 in 2013, has switched to sportscars this season and will contest the European Le Mans Series with Jota.
But he has agreed to race a third Double R car alongside full-season drivers Camren Kaminsky and Andy Chang for the August 16-17 Thruxton event.
Macau Grand Prix winner and new Red Bull junior Alex Lynn has already announced that he will also rejoin the F3 ranks for Thruxton.
Double R team boss Anthony 'Boyo' Hieatt said the Tincknell was further evidence of what a draw Thruxton was on its first British F3 appearance since 2010.
"Thruxton coming back onto the British F3 calendar is a big draw for racers like Harry, he's a top quality driver and we're absolutely over the moon he'll be racing in Double R colours there," said Hieatt.
"It's also going to be a fantastic opportunity for Camren and Andy to work with a multiple race winner who has experience from European F3 as well."