MOT in Leicester test is a comprehensive test that assesses the safety, roadworthiness, and environmental impact of vehicles. It covers a range of checks, including brakes, tires, steering, suspension, lights, emissions, and more. The test is mandatory for all vehicles over three years old, and it is an offense to drive a vehicle without a valid MOT certificate. The test is designed to ensure that vehicles on the road are safe for the driver, passengers, and other road users.