https://phys.org/news/2019-01-detroit-suvs-horsepower-electric-cars.html

So how credible is the industry's pledge to move toward fuel-efficient vehicles when it keeps cranking out more lucrative trucks and sport utilities?

Some environmental groups contend that companies aren't really interested in efficiency because they're making tons of money from the sales of less-efficient SUVs and pickup trucks. These groups also say that without government fuel economy requirements, automakers won't make progress toward electric vehicles that could reduce greenhouse gas emissions.