And so this age old debate continues…but which one of these fuels really does reign supreme at the pumps? Let’s take it in turn to discuss both the pros and cons of each one.

In the blue corner: Weighing in at an average 95.9p/ltr, the petrol engine packs quite the punch. The most popular (some may argue most common) option for motorists, cars with petrol engines are more much quieter and faster than its main opponent. Petrol engines are much lighter therefore offering a much more responsive drive, on the whole. At the forecourts, motorists with petrol engines have an option of unleaded or super-unleaded fuel. The difference between both is their Research Octane Rating (RON), which rates performance levels. Unleaded and Super-Unleaded have RON of 95 and 98 respectively, which indicates that super-unleaded petrol hold a higher performance than unleaded (the higher the RON the better performance). Petrol engines are much more easily repaired and require fewer services. Nonetheless, with an average petrol car emitting approx 214g/km of CO2, petrol engines are less friendly to the environment. Although with an increase in customers looking for more environmentally friendly cars, Seat have introduced Seat Ibiza 1.2 with low CO2 emissions, and an average of 47.9mpg, petrol cars are becoming more aware of the importance of being environmentally friendly.

In the red corner: Weighing in at an average 109.3p/ltr, the diesel engine is an underdog in the fuel stakes. But none the less is becoming an increasingly popular choice among motorists. Diesel engines are well renowned for being much more environmentally friendly with a lower CO2 emission rate, with an average diesel vehicle emitting 196g/km of CO2. Diesel engines are on the whole heavier than petrol, however this comes with a distinct advantage as diesel engines have more torque. Which in turn means that they are much better performers for pulling or travelling up hill. For motorists travelling long distances, diesel engines (although costing more p/ltr at the pumps) are much more effective as, the more miles travelled the better the value of the fuel the motorist receives, take Renault with their Megane Expression which gives efficient fuel consumption with an average 64 mpg. Other benefits of having a diesel powered vehicle are that the motorist pays less tax compared to its petrol counterparts.

So there we have it, in a nutshell, diesel cars are more costly to buy, and more costly in upkeep, nevertheless, they have less depreciation and hold their value very well in re-sell. Petrol cars on the other hand are cheaper to buy and even cheaper to run, however with high emission rates petrol cars are less environmentally friendly. Choosing which engine you want depends solely on the purpose you your vehicle. Looking to travel the length and breadth of the country? Then a diesel engine may be better suited to you. Looking for a nippy little cost effective run around? Perhaps you’ll be more in favour of a petrol engine instead.

Both fuel types have their benefits and drawbacks. To say which one takes the crown in the fuel stakes is in turn impossible to conclude. Settling this debate is as hard as choosing which action hero is better…

相比之前的运动Coupe，奔驰的工程师全新地研发或改进了超过1100件零件。这款CLC一些工程技术上的亮点包括一套可以实现更激烈过弯的直接转向系统，艺术级的信息娱乐系统如彩色显示屏，欧式宽屏DVD，硬盘式导航和媒体操作界面，最后还包括新升级的4缸发动机，最大功率达到184匹。油耗则同比上代发动机型降低10.8%.

紧凑的车身尺寸，肌肉车的线条强化的CLC的运动身姿。全新的奔驰CLC前后部是全新的设计，代表着了奔驰最新的设计理念。我们可以从中看到，它具有一副与众不同的Coupe式水箱格栅，中央一个巨大的奔驰三叉星，全新的投射式头灯。S级、CL级、C级都有类似的风格设计。重新设计的尾门舱拥有达到1100升的行李仓容积。全新的尾灯，其中长长的一排构成了第三刹车灯组，后保险杠进一步把尾部细化为几部分，亦强调了CLC车身之宽。

对于全新奔驰CLC的内饰可以近乎称得上是合潮流的定制化风格–你很难相信这是一款量产车，它的量身匹配的设计并极度强调舒适。运动的座椅提供更好的横向支撑，三幅的方向盘，自动空调还有拉丝铝装饰都是标准装备.

奔驰为那些追求运动的驾驶者还准备了运动套装。包括有一项特别的工程技术创新和18英寸的轻质铝合金轮毂，宽胎，黑色头灯罩，运动的悬挂带有自动降低车身的功能，皮革包裹的铝金属装饰。另一项特殊装备是CLC从其赛车同胞中继承而来的仪表组，采用红色指针指示速度计与转速计令人极富激情。一旦发动机点燃，这些指针会在车子起步之前先在仪表盘的范围内走一遍，这样很有跑车的感觉.

全新CLC车系提供一款四缸机和两款六缸机，对于AMG版本还是未知，但即使到来，预计也是两年后的事。发动机的最大功率从122匹到272匹，选择相当丰富。其中的184匹的CLC 200 Kompressor现在最大功率又上升了20匹，而油耗则从百公里8.2升下降为7.8，同比相当于油耗降低了0.7升。