While the numbers of U.S. consumers who say they are considering buying a battery-electric vehicle (BEV) are climbing most (63%) also believe those vehicles should have a minimum driving range of more than 320 km.

That's just one finding of a study by Deloitte that surveyed more than 35,000 driving-aged consumers, from 20 countries, across the globe.

Even though 41% of U.S. consumers believe full battery vehicles should have a range of at least 480 km, the average vehicle owner travels only about 43 km per day.

And surprisingly, a significant proportion of consumers are willing to wait between 30 minutes and one hour to fully charge an electric vehicle. In the U.S., 27% of survey respondents are willing to wait between 30 minutes and one hour, with percentages even higher in Republic of Korea (29%), Germany (30%), India (35%), and China (40%).

Consumer perception regarding the safety of self-driving vehicles remains stalled since last year in most countries. In the U.S., nearly half of consumers (48%) think that fully self-driving cars will be unsafe.

This apprehension extends to commercial vehicles, as well. More than two thirds (68%) of consumers noted that they were concerned about commercial vehicles operating in autonomous mode on the highway.

Across most global markets covered in this year's study, just under half of respondents in several countries believed that AV technology will not be safe. In fact, in India and China, the percentage of people that think autonomous vehicles will not be safe has increased to 58% and 35%, respectively. This trend goes hand in hand with consumers' views on testing autonomous vehicles, with over half of consumers in India (57%) and the U.S. (51%) concerned by the idea of autonomous vehicles being tested in areas where they live.

Automakers should heed consumer perceptions, the study found, suggesting that achieving a return on invested capital for new technologies may be more difficult than some automakers think. Notably, consumers in the U.S. (34%) indicate that they are not willing to pay extra for AV technology. And, for those willing to pay anything extra, it does not cover the costs required to develop and deliver the technology.

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