It might sound cruel, but there’s a reasonable chance that the sDrive20i will be referred to by BMW dealers as “showroom bait”. Sure, the $84,990 price tag might tempt a few people down to the local dealership, entranced by the idea of having a roadster that looks this damn sexy for well under six figures. 

Once they get there and take a drive, however, you can bet the dealer is going to encourage them to at least try the next model up, the sDrive 30i, at which point they’ll realise just how underpowered the entry model is - with its actually quite paltry 145kW and 320Nm from it four-cylinder, 2.0-litre engine. 

Explore the 2019 BMW Z4 Range

Those people who are not interested in spending the extra $20,000 for an actually quick Z4, and more interested in just cruising with the top down, will be quite happy with this base offering, and all the goodies it comes with.

Standard specification includes some of the things you might expect BMW to charge you for, like an M Sport Package (very much a non-mechanical package of M bits and badges), and an M leather steering wheel with multifunction buttons, plus a wind deflector, a head-up display, and heated M Sport seats with electric adjustment, covered in ‘Vernasca’ leather, and wireless phone charging.

You also get 18-inch alloy wheels, an eight-speed Sport Automatic transmission with paddle shifters (there’s only one gearbox option), a tyre-repair kit, because there’s no spare in there, a through-loading system for bulky items, cruise control with Braking Function, high-beam assist, LED headlights and Parking Assistant including Reverse Assistant.

In the dash, you’ll find a HiFi Loudspeaker System, connected to 10 speakers and DAB digital radio, and Connected Package Professional, which allows you to access Apple CarPlay wirelessly. Which is clever, but it’s only free for the first year, and then you have to pay a subscription fee to use it, which is $179 for the next year.