If you compare a 2012 tesla model s 70D (the most efficient model tesla had then and arguably the gold standard) it had 33.4 kWh/100mi EPA, the 2025 LR is 27.2kWh/100m which is nearly 22.8% less and this while being larger.

What's even crazier is that a tesla 2008 tesla roadster had 28kWh/100mi EPA combined, which is more than today's model S.

Literally there isn't a single combustion car (not including hybrids) which comes anywhere close to this improvement.

Also I don't know about other countries, but I'd argue that in 20 years at least in Europe the fuel economy of diesel cars has gone worse due to emissions, I'm talking about real world usage, regardless of what this WLTP non-sense says.l