Mexican racer Rodrigo Fonseca returned to BRDC F4 in 2015 with Lanan Racing. Fonseca graduated from karting in Mexico to cars in 2014, and made strong progress throughout the main F4 season. He scored a best result of fourth place at Silverstone in August, and enjoyed a competitive second half of the season with regular top-six finishes.
In the 2014 Winter Championship, the Escuderia Telmex driver was a regular podium finisher, picking up two wins.
The 2015 championship saw Fonseca push eventual champion for much of the season. Two wins helped him to an eventual fourth-place in the championship table.