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Message: <blockquote data-quote="ALBundy" data-source="post: 449758" data-attributes="member: 15">Forced induction, especially turbo charging will be indeed the way to go. BMW, Audi, Mercedes, Peugeot and etc etc are all moving towards that direction. The current trend is engine downsizing, and compensate it with forced induction which results in higher horsepower and lower carbon emission. As for the American car industry, they are always behind the Europeans in terms of technology and trend.  Turbo charging has come a long way, and now with advancement in metallurgy and mecha-tronics, most of the issues like turbo lag and overheating are no longer an issue.  Another thing is about the longetivity of diesel vs petrol engines.  Diesel engines operate on the principle of compression, meaning to say there is no spark plugs. Compression ratio in a typical diesel engine ranges from 16:1 to 22:1, where as a modern petrol engine usually ranges from 9.8:1 to 11.5:1 (M3). As the diesel engine is operating at high compression (and hence the high torque), most of the internal components like the crankshaft and conrods are forged.  This coupled with the diesel's inherent property (like a lubricant...try rubbing a drop of diesel with your fingers) and lower maximum operating RPM will always ensure diesel engines last longer than petrol ones, forced inducted or otherwise. The number one engine killer has always been engine vibrations, and at high engine rpm it will get significantly worse as it is an exponential relationship. As for me, I love the 3.0 turbo diesel inline 6. Diesel chatter is significantly lower than the 2.0D, and it is silky smooth <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" /> It would be the best option for BMW enthusiasts that love the silky smooth inline 6 engine.  Also to note, next generation of ///M engines will "most" probably be equipped with forced induction, no more V8s for the M3, and V10 for the M5. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown    :(" loading="lazy" data-shortname=":(" /></blockquote>

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