Opinion: Engine upsizing could become a growing trend

The race to impress highway automobiles hasn’t ever been extra obtrusive than at this 12 months’s Frankfurt motor display. But, along that building, some other, much less seismic powertrain trend could also be accumulating momentum.

Why trade bosses say electrification may have penalties

Petrol engines have gone through a number of downsizing during the last decade, with two, 3 and four-cylinder turbos changing 4 and six-cylinder engines. These energy devices ship robust CO2 emission efficiency beneath the outdated NEDC laws however do reasonably much less smartly in real-world gas economic system checking out and, as many house owners have discovered, in precise use.

Bentley’s Peter Guest, programme supervisor for the Bentayga, reckons there could also be a reversal of the trend, resulting in bigger-capacity, low-revving engines, particularly with new economic system assessments coming in. The corporate’s well-known 6750cc V8, evolved within the early 1950s and nonetheless used within the Mulsanne, “is the very best to get via the brand new emissions and economic system assessments”, says Guest, as it’s a big-capacity, typically aspirated, low-revving engine.

Don’t be expecting a rush in opposition to larger-capacity engines – the prices of downsizing are nonetheless being amortised and the concern now could be electrification. But there could be a sluggish trend on this path.

Read extra

Why trade bosses say electrification may have penalties 

Bentley Bentayga overview 

Bentley Mulsanne overview 

Opinion: Engine upsizing could become a growing trend

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