As the protracted development of the fifth-generation A90 Toyota Supra continues, information on the highly anticipated sports car continue to leak out like water from a colander. Last week, users on the SupraMKV.com forum found a complete parts catalogue on the BMW parts site RealOEM.com, and now another user, ec15, has pieced together the exterior and interior design using the individual part diagrams.

While various spyshots (both from actual spy photographers and from Toyota’s marketing) and this year’s GR Supra Racing Concept have pretty much informed us about the complete styling by now, there are a few details that have been fleshed out in these renderings. The swooping curves and slashes are obviously inspired by the FT-1 Concept from nearly five years ago, albeit not quite so outlandish.

At the front, the show car’s L-shaped LED headlights, tall Formula 1-inspired nosecone and large twin air intakes have been retained, but Toyota has added inlet in the centre, underneath that nosecone. A sizeable front splitter, masked by the camouflage in the aforementioned spyshots, is evident here, while additional corner air inlets underneath the headlights can also be found.

More vents and intakes can be found aft of the front wheels and in the doors, the latter of which appear to be fake. The wraparound windscreen design, “double bubble” roof, BMW-derived door mirrors and ducktail spoiler are present and accounted for, as are the side skirts and giant rear diffuser. Wrapping things up are a set of two-tone alloy wheels with blade-shaped spokes.

Although not rendered here, the part diagrams reveal a pert rear end with a large tailgate, slim teardrop-shaped tail lights, yet another pair of vents underneath those lights and a pair of round exhaust tips protruding from the diffuser, which also houses the F1-style centre fog light.

Also shown is the interior, which sports a simple horizontal design with full-width air-con vents. Various BMW switchgear is strewn around the cabin, including the climate controls, window and light switches, indicator and wiper stalks, multifunction steering wheel buttons and the electronic gearlever for the automatic transmission. There will likely also be a freestanding iDrive infotainment screen, which is missing here.

One point of difference compared to the BMW Z4 – on which the Supra is based – is the instrument cluster. Like on its Munich sibling, it’s a large digital display, but the Toyota gets a fixed bezel for a centre gauge (probably the rev counter) with the screen shifted off to one side, similar to what you’d find on a modern motorcycle. There’s a second display to the left of the bezel.

The catalogue leak also reveals that the Supra will be offered in 20i, 30i and 40i variants, with power outputs that likely correspond to similarly-named trim levels on the Z4. That means that there will be a base 2.0 litre turbo four-cylinder petrol engine, which on the Z4 produces 197 hp and 320 Nm of torque in the sDrive 20i and 258 hp and 400 Nm in the sDrive30i.

At the top of the range sits a 3.0 litre straight-six – in the Z4 M40i, it makes 340 hp and 500 Nm. It was previously reported that the Supra will only be available with an eight-speed automatic transmission (as with the Z4), although recent news suggests a manual option could be offered in right-hand drive markets if customers demand it.