Three things decide whether a car category is right for you: budget, time, and experience. Pick a category that matches all three and you'll have a profitable flip. Pick one that doesn't and you'll be Googling "BMW air suspension cost" at 11pm on a Tuesday.
Beginners almost always overshoot on price. They see a £6,000 Audi A4 and imagine a £1,800 profit, ignoring the £400 timing chain, the £180 set of tyres, the £500 month it sat unsold. The right first car is rarely the exciting car. It's usually a Fiesta or a Polo.
Time matters more than people admit. A Premium Executive flip can take 6 weeks to sell at retail. If you need that capital back in 3 weeks, you'll either be selling at a loss to trade buyers, or stressed and making bad decisions. Match your category to your cash runway. Read the full UK car flipping guide.