Improving the efficiency of conventional vehicles is, up to a point, the most economical and easiest - to - implement approach to saving fuel and lowering emissions, the report says. (dotearth.blogs.nytimes.com)
These factors may need to be considered when weighing the benefits and disadvantages of replacing conventional vehicles with electric vehicles. (sciencedaily.com)
They're not particularly accurate for conventional vehicles either, but in that realm they're relatively consistent — or consistently wrong — from one model to another. (cars.com)