If you’ve been in two minds about buying a new 718 Boxster because you were not convinced by the turbocharged, 2.5-litre boxer four-pot, then hold on to that deposit. There’s a new Boxster Spyder in the works. Our spy snapper has chanced upon what will be the most powerful Boxster ever being tested.

Virtually undisguised, the 718 Boxster Spyder features a manually removable soft roof and features an aerodynamic package that’s similar to that of the Boxster GTS. But what’s most interesting about the new hardcore 718 is the engine. While the previous version had a 370bhp 3.8-litre flat-six taken from the 911 Carrera, the new model is expected to use the naturally aspirated 4.0-litre lifted from the 911 GT3. So, whatever involvement and immediacy of throttle response you might have missed in the turbo fours will be back, screaming at the redline. There’s no word yet about power or performance figures, but since the 718 GTS already has 365bhp, and the 4.0-litre block making 494bhp in the GT3, we expect something in between these two numbers, possibly around 420bhp.

A six-speed manual gearbox will be standard, but a seven-speed, dual-clutch automatic will be available as an option to give you that edge on track days. Being a performance-oriented model, the Boxster Spyder will see many creature comforts deleted. But this being a Porsche, it’s very likely that you’d be allowed to add these features back for an additional cost.

Although Porsche is yet to confirm a launch date, we expect it to make its debut sometime early next year.