... , the increasingly popular motorsport in which cars skid sideways.
"I didn't get my licence first time around because I didn't see the 40km/h zone," he said. Now, with just one round to go and 15 points on offer, Coulson, 17, holds a substantial 12-point lead in the top amateur class of the national Stadium Drift titles.
The youngest competitor yet in the series started drifting when he was 15. His father, Martin, a used car dealer, had to drive the car in and out of the pits for him. "I'd driven about three times around dad's car yard before I had my first drift," he said.
"It felt just like the Playstation game LFS (Live for Speed). The steering wheel felt exactly the same just the feeling of the G forces was different."
In just his second season in the sideways motorsport, Coulson has blitzed the much more mature and experienced field with two firsts, a third and a fourth. In drifting, competitors are marked on proximity to the car they are "racing", their speed, the angle of the car and the amount of smoke they generate from drifting the car on its tyres at speeds up to 160km/h.
"I like racing against other people, especially the pros because you can trust that they won't spin out and hit you," he said. "I don't have any fear. It's just fun."
The Forest Lake College senior student hopes to go professional next year or venture into other motorsport disciplines such as V8 Supercars. Meanwhile, he will help out at his father's Moorooka used car yard.
"We're not concerned about him hooning on the streets," his father said. "You'll find most people will do it only on the track if they have the opportunity. Unfortunately the opportunities are so limited."
Coulson has spent about $50,000 developing his son's 1989 Nissan Skyline with its RB25 2.5-litre turbocharged engine pumping out 258kW of power, which is about 100kW more than a Holden Commodore. While the young Coulson can unleash the full potential of his Skyline's blown engine on a race track, as a P plate driver he is not allowed to drive the turbocharged car on a public road.
For the road, he drives a non-turbo Skyline. "Drifting should only be done on a track," he said.
"And if any competitor is seen leaving the venue spinning their wheels or doing anything they shouldn't do on the street, they are not allowed back."