Diesel engines are the most fuel efficient vehicle power source available.

柴油发动机是现有燃油效率最高的机器.

Optimised features that strike a perfect balance between fuel-efficient innovations and driving enjoyment.

优化的特色表现出燃油效率革新和驾驶享受两者间完美的平和。

But the motorway proposal is expected to receive stiff opposition from road safety campaigners and environmentalists who point out that cars are far less fuel efficient at the higher speed.

但是，高速公路的提案预计会收到来自道路安全维护者和环保人士的强烈反对。他们指出汽车在高速公路上以更高的速度行驶时，并不会明显提高燃油效率。

I'd prefer a fuel-efficient car.

我比较喜欢拉风的车。

Small, fuel-efficient, front-wheel-drive cars were the wave of the future.

小型的，节油的，前轮驱动的汽车是今后的趋向。

Introducing the most fuel-efficient crossover. The Kia Niro. Oh, come on!

隆重推出最节能高效的多用途车。起亚极睿。哦，来吧！

They wanted their vehicles to be fuel-efficient. They wanted to breathe cleaner air.

他们希望他们的交通工具更加省油。他们希望呼吸到更干净的空气。

DOE issued a new challenge in 2009: Give the lightened bus a more fuel-efficient drivetrain.

2009年，联邦交通部（DOE）提出了一个新的挑战：给这辆减轻了重量的公共汽车更有效的动力传动系统。

This crossover is intended as an SUV version of the compact and fuel-efficient Versa hatchback.

这种跨界车相当于一辆紧凑而省油Versa掀背的越野车（SUV）版本。

GOX turbine fuel efficient vehicle power the turbine is suitable for all non-native EFI turbocharged car.

GOX高效汽车动力省油涡轮本涡轮适合所有非自带涡轮增压的电喷车。