“Engine and technology advancements” can also be applied to smaller cars so that doesn’t really move the needle anywhere.
I think it’s quite obvious that unless you discover how to break the laws of physics, the smaller car will be always more efficient due to better aerodynamics and lower weight.
EU states can ban religious symbols in public workplaces (www.bbc.com)
Always that feeling (jlai.lu)
The average car purchased in 2023 emits higher levels of carbon dioxide (CO₂) than its 2013 equivalent. This is due to the large proportion of SUVs in the mix, which tend to be bigger and heavier. (english.elpais.com)