"In a recent report, the Commons Transport Committee said it was "hard to justify parking fines that are substantially more than the fines for more serious offences like speeding", for which the minimum penalty is £100 and three penalty points added to the offender's licence."
"This would be "an initial step to giving local authorities the scope to allow lower charges (than £70 in London and £40 in the rest of England) for minor parking variations", such as overstaying in car parks or on-street bays."
In what world are fines of £70 and £40 substantially more than £100 and 3 penalty points?