So just seen a report suggseting that even with the might/expertise of Toyota backing hydogen fuel cells cars, production of the £60K+ Miria is going to be limited barely a handful globally for at least the next 3-4years...So timed perfectly for when Tesla's battery factory is due to fully come on-line and start producing battery packs for at-least 30% less than the cost today.
https://transportevolved.com/2015/04/27/2016-toyota-mirai-hydrogen-fuel-cell-sedan-has-three-year-wait-caused-by-production-limitations/
Meanwhile, in the present and now, my little £200/month battery powered Leaf completed it's first 200 mile trip at the weekend (Also done nealry 200 miles more than my 'target' PCP monthly meillage limite)....Not the most relaxing, but not a probelm with the Leaf, more of a problem to do with horrific un-reliability of the rapid charger network - at least it was all 'Free', total cost to me for electricty to re-charge the Leaf for the last 800 miles has been £3!!! (Majority of charging has been on for 'Free' at local supermarket charging posts, shopping center car parks, and the odd rapid charge up at Nissan dealer)
Come-on Lexus/Toyota, get on with-it and stick a full EV drivetrain into the IS, give it a 50-60kWh battery with 200 mile range, and I'll happly hand over £50K+....Otherwise my money is going straight to Tesla.