I did a bit of googling at it seems that the 2016 Honda Clarity has a 141L tank, that gives it a range of 366 miles, while the Tesla Model 3 Standard Range Plus

I did a bit of googling at it seems that the 2016 Honda Clarity has a 141L tank, that gives it a range of 366 miles, while the Tesla Model 3 Standard Range Plus has a 334L battery, which gives it a range of 267 miles. So even if my numbers are off by a bit, the volume of hydrogen tanks is not a prohibitive factor.