It seems that Porsche has been very busy lately. Next to working on facelift versions for pretty much its entire lineup and preparing a hybrid 911, the Stuttgart-based company is also working on a more powerful version of the 718 Boxster Spyder.

The fact that this prototype was caught testing today should come as no surprise, as Porsche is already offering a Cayman GT4 RS. And, this spied Spyder RS is nothing more than just a roofless GT4 RS, albeit, with a few aerodynamic changes.

The first thing you will notice is the lack of that 911 GT3-inspired wing featured on the coupe version. It also appears that the carbon fiber hood with its massive vents is also missing, but at the same time, you could also be looking at an early prototype.

However, when compared to the coupe version, the Spyder does feature some extra air intakes placed on the sides of the roof on the rear deck. The main purpose is to send more air to the engine. Also, in the back, the wing is replaced by an active spoiler - similar to the one from the standard Spyder version.

The prototype rides on center-lock wheels, in X-spoke design, combined with gold brake calipers up front and black at the rear.

Just like the Cayman GT4 RS, the Spyder RS should be powered by a 4.0-liter naturally aspirated flat-six engine with 493 horsepower and 331 pound-feet of torque. With a total weight of 3,227 pounds, the coupe version sprints from 0 to 60 mph in just 3.2 seconds and has a top speed of 196 mph. Of course, with the Spyder version being heavier, we expect these numbers to be altered.

The new Spyder RS will make its official debut in 2023. It will be one of the last combustion-powered 718, because as of 2025, the entire line will go full electric.