The updated Porsche 718 Cayman GT4 has been spotted testing once again, this time at the German circuit-testing favourite, the Nurburgring Nordschleife. The development vehicle seen here largely resembles the one photgraphed last July, where its headlamps and taillamps are like the ones on the rest of the Boxster and Cayman 718 range. Meanwhile, the front bumper wears larger and more square-cut intakes, and the rear end now uses a separated pair of exhaust outlets, plus there’s a larger rear wing than before.

As the development car seen last year appeared to be almost production-ready, the latest one seen here reveals what’s left of the 718 Cayman GT4’s concealed details, namely the LED daytime running lights on the front bumper. This test unit also appears to wear even larger wheel and tyres than the 20-inchers on the preceding GT4; could the rears be 21-inch items?

Either way, these remain conventional five-lug wheels, as opposed to the single central-lug type on GT-series and higher-end 911s. Chassis for the 718 Cayman GT4 should continue to be comprised of MacPherson struts both in front and at the back, and where the Clubsport racer features a wide range of mechanical adjustments, the road car is likely to use PASM electronically adjustable dampers.

We have gathered previously that the forthcoming 718 Cayman GT4 will have a powerplant with more than the 385 hp of the old car, though less than then 500 hp of the facelifted 991-generation 911 GT3. With the 718 Cayman GT4 Clubsport having made its debut, we’d guess that the track car’s 425 hp/425 Nm outputs could translate directly to the road car – the previous Cayman GT4’s 385 hp/420 Nm output figures were shared with its Clubsport twin. Now, however, both DIY stick shift and PDK auto are expected.