We have consulted with industry experts and determined that it is possible to push average conventional vehicle efficiency to 40-50 mpg in 2030, and assume 45 mpg in our proposal.

• 我们咨询了汽车行业的专家，并认为在2030年将常规汽车的平均效率提高到每加仑40-50英里是可能的，并在方案中定为45英里/加仑。