Quote:
Originally Posted by grantp
My Son-in-Law has, reportedly, just ordered an E-Class estate (not sure which engine - but 200 or 220) on a personal hire plan at what seems to be a remarkably good deal for a PF plan.
His 4 year BMW 5 series lease is about to end and a recent job change has added to his commute distance. One wonders if they are trying to shift production ahead of regulatory changes that will make them unsellable.
More impressively the engine output claims for the 200 is 150 bhp and the 220 185 (from memory), Yet with the 9 speed auto box the performance figures are better than my Saab Aero original specification despite it's solid and well proven turbo technology and 250 bhp.
It's not like the E-class is smaller or lighter so they must have come up with some very interesting ways of completely maxing the performance through the gearbox and traction and engine response/torque map to obtain those numbers.
Does anyone have any insights about how they have done it?
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Modern turbo diesels have spectacularly high torque figures, usually at low engine speeds, but often also come with narrow power bands. By carefluuy matching the engine to a multi-speed, electronically controlled transmission does enable them to keep the engine in the 'sweet spot' for optimum acceleration.
9 Aug 2018, 15:59 (Ref:3842557)
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