Earlier quoted context omitted.
Some of the "frugality" stuff is just image - he also had a Porsche, lived in a very nice property in Switzerland for 40 years, and also owned a French vineyard (although he forced IKEA to sell the wine from the latter so he may have actually made money off of that one...)
As far as sports cars go, you can get a reliable Porsche that will last you a very long time. Not necessarily wasteful if you want good performance out of a car.
I’ve never heard anyone say that about a porsche.
Genuinely curious, not being facetious.