What is it?
The new open-top BMW M4, a convertible whose manners have clearly been tamed for ambitiously rapid high-speed cruising.
Like the M3 convertible before it, the BMW M4 convertible is a slightly troubling device for car lovers. This is a machine whose main reason to exist is the exhilaratingly tactile pleasure of driving it as rapidly as you dare.
That’s why the M4 coupé has a 431bhp turbocharged straight six engine, fat tyres, a front bumper gaping with air-guzzling grilles, and the option of a swift-shifting seven-speed, paddle-triggered transmission.
The M4 convertible has all this too, but it weighs more and is inevitably less rigid to the potential detriment of the road manners that are a BMW Motorsport model’s priority.
And this downside has applied to every one of the now five generations of roof-retractable M3 and M4s.
None of which has deterred the 60,000-odd global customers who have bought a drop-top M3 over the past 26 years. If you want the top-of-the-range high-performance 3 or 4 Series, this is your car, and plenty of sun-lovers will settle for nothing less.