What is the difference between having a 't' and not having a 't'?

[LeJuliette]

The difference between having a 't' and not having a 't' lies in the engine type and power output. Different engines: Cars with a 't' are equipped with turbocharged or supercharged engines; cars without a 't' are equipped with naturally aspirated engines. Different power outputs: With the same displacement, cars with a 't' have stronger power output than those without a 't'. However, maintenance and repair costs for cars with a 't' are much higher than those without a 't'. For long-distance driving, cars with a 't' are more fuel-efficient because the turbocharger kicks in, allowing for more complete fuel combustion. In urban driving, cars without a 't' are more fuel-efficient because it's difficult for vehicles to reach speeds where the turbocharger can engage in city traffic.