The routes
Pick a spine, follow it.
Each route is designed backwards from its Superchargers: the campsites sit close to the spine, the charge stops are planned to the percent, and the cost box at the end shows what the whole thing actually costs.
450 mi · 4 days
Cornwall on Superchargers Alone
Four days down the A30 spine: surf beaches, the far west, and a night on the Lizard where no Supercharger can save you.
350 mi · 4 days
Lakes on Superchargers Alone
Tebay in, Rheged out: four days of lakes and passes where the M6 spine does all the heavy lifting.
500 mi · 5 days⚡ Wildcard
NC500: The Boss Level
Five days, 500 miles, and exactly one Supercharger, sitting at the start line. This is the route the doctrine was written for.
Difficulty is about charging, not driving: 1 means the spine has you covered, 3 means one Supercharger and a Wildcard between you and an empty battery.