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Mercedes S63 gets new 5.5 litre V8

The Mercedes S63 AMG is the firts to get the new AMG 5.5 litre V8 Bi-Turbo Mercedes’ top end AMG engine has changed over the last few years. It’s gone from a 5.5 litre supercharged lump to the now ubiquitous 6.2 litre normally aspirated engine, which anomalously gets badged ’63′ throughout the cars that sit at the top of each of Mercedes big-engined ranges. But now we go back to the future with the return of a 5.5 litre V8 – admittedly a completely new engine (M571) – which this time round sports a pair of turbochargers and delivers 554 hp and 590lbs/ft of torque.

BMW Concept5 X5 eDrive revealed. It’s a plug-in Hybrid X5

The BMW Concept5 X5 eDrive (pictured) will debut at Frankfurt The arrival of the BMW Concept X5 eDrive ahead of its debut at Frankfurt next month doesn’t preview and immediate addition to the X5 range of a plug-in hybrid, but it does show what will be on offer in a year or two. Just like yesterday’s Mercedes S500 plug-in hybrid, the X5 eDrive is another example of how car makers have developed their way round CO2 taxation levels by throwing electric motors at ICE engines to create a car that offers impressive emissions and economy on official tests. In the case of the X5 eDrive that means a four-cylinder twin power ICE engine (BMW aren’t saying, but we’re assuming its a petrol engine), a 94bhp electric motor and a lithium-ion battery under the boot all working together to produce an X5 that is capable (at least in official tests, which is all that matters) of 74.3mpg and emissions under 90g/km.

Formula E Spark-Renault electric race cars arrive with the teams at Donnington

The 10 Formula E cars arrive at Donnington No one knows if the Formula E experiment – an ‘F1′ Grand Prix series for electric racing cars – will garner the same sort of interest as its ICE counterpart, but with the first Formula E race scheduled for Beijing in September we’ll soon find out. Ahead of that debut race, Renault and Spark Technologies has delivered the teams their cars – all the same Spark Renault SRT_01E – to the Formula E base at Donnington. After a series of tests at a variety of circuits earlier this year, the Spark Renault SRT_01E passed all its final systems and architecture tests, which has allowed this first batch of the final series cars to be delivered for the teams to practice ahead of the race.