I am struggling to know who this is for. I can't imagine my Ferrari owning boss buying one of these to go with the Cayenne his wife drives and I can't imagine her giving up her rose gold Macbook Air for one of these things. My brother in law, forced to sell the 912 by my sister actually does actually consider buying anything Porsche that is non-car, again I can't see him getting this ultimate laptop even with his favourite logo on it.
Yet, if you are into classic cars or brand new Porsche cars then anything less than £5K is not a lot of money, compared to the money pit that a deluxe car is this laptop is a steal.
Where I think they went wrong was in making a product that was just the logo slapped on. If this was the de-facto laptop for doing all your timings and engine performance things in the pitlane then it would have genuine utility. Not everyone is flying around Silverstone every weekend but when that happens it is nice to have all the gear. The flimsiest of Porsche 'app' would have been all it needed perhaps with some sensible ruggedizing to make the laptop something that would sit well in the workshop environment or 'mounted to the rollcage or dashboard'. As well as the ruggedizing a good selection of sensors borrowed from a mobile phone would help too, maybe with a camera pointing outward from the screen too for telemetry and video. The SDK could be published too.
With a professional rather than a designer product I could see the Porsche laptop winning over buyers like my friends that cherish the cars.