Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Boris planning war on diesel car drivers – London Mayor wants drivers of diesel cars to pay more

Boris wants to charge diesel cars an extra £10 to enter London We’ve long banged on about the nonsense of basing the cost of motoring on the Co2 emissions of cars, and it seems the London Mayor, Boris Johnson, also realises that Co2-based taxation has led to a real pollution problem. As we reported as far back as 2010, petrol cars – certainly before the introduction of Euro 6 emissions recently – are far cleaner than diesel cars when it comes to the sort of stuff that really matters – NoX and particulates. And the problem has been exacerbated by basing car taxation on Co2 emissions as lower Co2 levels have been much easier for car makers to achieve on diesel engines, which is why diesel-engined cars now account for around 50 per cent of all cars sold in the UK.

Smaller Mercedes SLS confirmed, and with front-mounted V8 too

Baby Mercedes SLS AMG - or at least how it could have looked if mid-engined We’ve believed for some time that Mercedes were planning a smaller version of the SLS, but so far there’s been no official word. But that’s now changed, with AMG’s Christoph Jung telling AutoExpress that Mercedes and AMG are currently working on a smaller SLS, to go head-to-head with cars like the Porsche 911 and Audi R8. Interestingly, we’d thought that Mercedes would go the route of a mid-engined two-seater for the baby SLS, and that it would probably get a turbo V6. But it would appear not.

Essay: Variable Degrees of Translucency

Car door panels and fenders are generally made of steel, sometimes of aluminum or plastic composites, and you can't see through them. Car windows, on the other hand, are made of a transparent sandwich of glass and plastic - and you can see through them. But in the future there will be variable degrees of transparency: translucent elements where once there were none, traditional window areas that will have opaque elements and graduated progressions from opaque to see-through.