In terms of the internal structure of the car, the one with T indicates the correct turbocharger, which is common in twin-turbocharged engines and is expensive to repair. In terms of power, it is correct that 1.5T is more powerful than 1.5L, which is common in cars with a larger total mass. Such as extended version of sedan and sports hatchback. In terms of fuel consumption, 1.5T has greater fuel consumption than 1.5L. The reason is that it also absorbs fuel while inhaling air. In terms of safety, 1.5L is more likely to catch fire than 1.5T under the same conditions. The reason is oil leakage. If you have 1.5 liters of No. 93 gasoline, and it is hot and dry outside, and the oil pipe leaks drop by drop, you will find that the T one will suck up the oil on the oil pipe before shutting off, while the L one will leak faster and faster. In terms of publicity, the most common ones with T are GT, which means high horsepower output, and racing cars are the most common. There are many second-hand cars, and the trademarks are silver and red, which are fashionable, face-saving and domineering. For example, BYD's RS, Volkswagen's RT, and Buick's GT. And China is a country with many mountains. The higher the altitude, the thinner and colder the air. The turbine is as high as a pressure cooker to prevent the engine from stalling. The calculation formulas are different and the required values ??are also different. For example, between Roewe 1.5T and Ford 1.5L, the accelerator remains unchanged and the number of engine cylinders remains unchanged. L wants the rotation speed, gears, driving speed or mileage, and T wants the driving time and gears. The T can tell the fuel consumption with empty tires, while the L requires floor tires to compare the difference between 1.4 and 1.6. I'm afraid that the power of the 1.4 is too powerful, and I'm also afraid of the tax of the 1.6, so I'll get a 1.5, depending on whether it's a mountainous area or a plain. In short, comparing momentum, regardless of displacement or other things, the second-year high school physics formula P=mv, using at least 4 cars to liter and T of power, there is no rough estimate of how many liters of fuel consumption 1.5T equals. Under the same conditions, the braking distance is different. If the 1.5 is more powerful, it will be difficult to stop, and the safety distance will be longer. It is not entirely correct to look at the adjustment, because the adjustment is only an auxiliary means. If you just want to save fuel money and after-sales maintenance costs, then I suggest that after buying the 1.5L model, ask your boss to insert the fuel saver into the cigarette lighter immediately, so that you can have the same power as wearing a T.