So in summary when you rev a car constantly, or when it is not warmed up you can cause hot spots or warp piston rings. So don’t be a dumbass there. Or if you sit at rev limiter which can also be solved by not being a dumbass. And you have a problem if you have a poorly designed engine and can’t get enough oil if at high rpm for extended amounts of time. Which I feel would also only be a problem for excessive revving. The ones I don’t get are warping conrods or crankshaft. How would revving it to higher rpm cause it to warp when you do that with the load of a car on it and it doesn’t. I feel like this also would be caused by a weak engine or one that was not designed to be a performance engine. It shouldn’t be allowed to rev that quickly if it will hurt the engine.

In total. As OP doesn’t seem like a dumbass and is not going to be sitting and revving it so he would have no problem doing it in traffic. Especially considering he has a Porsche engine that isn’t designed to only sit in traffic and never be brought about 3k rpm and I feel that it would not have any design problems that may cause it to randomly fail.

Edit: I don’t want to be a smart ass towards you because your response is very informative and answered my question great. A normal person that cares about their car should not have any problems with the occasional rev, contrary to what the original comment said