The phrase "tight curves" refers to a situation or object that has bends or turns that are close together, making them difficult to navigate smoothly. Full definition
The transmission will hold a gear through tight curves, or manual mode can be used. (sfbenz.com)
The real fun was kicking out the rear end in tight curves; this behavior was easily controlled and readily accessible, especially if you had the turbo on the boil. (bestride.com)