Best get your wallet out then
Aircon, satnav, heated door mirrors, leather interior, tracker, the excellent sport seats, and a better chassis. Dynamically superior as the engine is in the right place, and you get more room for shopping too. Quicker 0-60 and higher top speed as well, if that floats your boat.
Only thing it falls down on is the 3 year old rule, admittedly, but it's only done 46K and Porsches wear much better than Nissans anyway so it really won't feel like a 6 year old car. There's a 370Z on there for £16700 that's done 33K miles in three years, which would be the closest competitor but that's an auto.
If anyone buys a car because of the badge, they're an idiot. If anyone hates a particular brand because of the badge, they're an idiot. If anyone thinks a car that costs £20K more when new isn't better than the cheaper one, they're an idiot. Sometimes though the best car isn't actually the best car for the individual, which is why we all ended up in Zeds here. There's better cars out there, certainly for the money, but we all bought the Zed in whatever form because it was the best car for us at the time. How hard is that to understand, and to let people enjoy the choice they made without being labelled as an idiot who seeks some proprietary idea of 'bang for buck' or 'premium badge'?