Your teammate is usually your biggest rival in motorsport. But what's it like when that person is also your father? "He beat me at Thruxton," says 22-year-old James Jenkins. "I'll never hear the end of that." A faulty fuel-pressure regulator was the young driver's excuse, but then dad John posted a faster lap time in the second race. "Now he's getting quicker and we battle against each other more," adds James, who joined the Mighty Minis grid in 2022. James immediately impressed by winning the Novice Trophy and securing second place in the championship, which he followed up with third-place finishes in 2023 and '24. But now he's looking over his shoulder for John, too. "I recently turned 60," explains John. "Up until then I had never worried about getting older. But then suddenly I thought: 'I've got to do something. Bugger it, I'll give it a go'." Mighty Minis – now part of the 750 Motor Club – celebrated its 30th anniversary in 2025, and the grassroots series is still one of the cheapest ways to go historic racing. As with any form of motorsport, 'affordable' is a subjective term, but relatively low race fees and tightly controlled, budget-friendly regulations help to keep costs in check. James bought his racer – a championship-winning 1994 Rover Mini SPi – in 2021 for £8500. Not pocket money, but a fraction of the price of the Mini Cooper 'S' racers that battle gargantuan Ford Galaxies at Goodwood Revival. True, the modest Mighty Minis series might lack the prestige of the Duke of Richmond's world-famous gathering, but it offers sub-£10,000 thrills and a grid full of buzzy, 1275cc tin-tops at some of the UK's major circuits. Go-getting James paid for his first year on the grid by buying, repairing and selling ride-on lawnmowers.