ulk, though, and the 158bhp turbocharged 1.5-litre engine feels a little sluggish when dragging the S-Max up to higher motorway speeds. That said, it’ll rev out past 5000rpm without fuss, offering a smooth power delivery with minimal turbo lag. Refinement is a strong point, too, especially below 3000rpm, where noise is kept to a whisper. The 177lb ft of torque drops off past 4500rpm, though, so there’s no great sense of urgency in acceleration.