Manufacturer Affinity Achievement
Earn a Manufacturer BonusIf you unlock the vast majority of cars for a manufacturer, you'll get a Manufacturer Bonus in the 'Car Collection' screen (pause menu, Cars tab). Get that bonus, get this achievement. It's super easy, to be honest, as some manufacturers have one car to get the bonus, and those cars are like 25,000-50,000 credits. You can buy cars direct from the Car Collection screen, just hit the button when you hover over a car (if you can buy it, of course).