Gloucestershire driver Zak O'Sullivan has missed out on the British F4 Championship title in dramatic circumstances at Brands Hatch.

O'Sullivan, 15, was leading the final race of the season, and on course for the title, before rain resulted in the race being red flagged.

As the race was abandoned before half distance, only half points were awarded and O'Sullivan did not receive the points required to overhaul championship leader Luke Browning.

Confusion reigned at the end of the race with O'Sullivan initially celebrating with Carlin teammate Christian Mansell before discovering his ninth win of the season was not enough for the title.

Speaking to ITV Sport immediately afterwards Zak said: "I'm not sure why it was red flagged. The track wasn't getting any worse. It wasn't that bad. I'm not too happy about it.

"As far as I'm concerned I won the championship on track. I'm happy with my performance."

O'Sullivan, from Withington near Cirencester, came into the weekend level on points with Browning but the Fortec driver moved to the top of the standings with victory in Saturday's race.

A penalty in Sunday's first race dropped O'Sullivan from 2nd to 4th and left him trailing by 16 points with one race to go.

But after Browning dropped to the back of the field O'Sullivan was back on course for the title before the race came to a premature end.

O'Sullivan had been hoping to follow in the footsteps of current McLaren F1 driver Lando Norris in winning the Ginetta Junior Rookie Cup in his first year of car racing and the F4 championship in his first year of single-seater racing.

The result meant O’Sullivan’s Carlin team did still win the Team's Cup.