Depending on the emissions generated, cars will fall into two bands. The most sustainably produced cars will be in 'band one' and will receive the full £3,750 discount. Cars which meet baseline environmental criteria will be in 'band two' and will receive up to £1,500 off. Vehicles priced under £37,000 that meet Science-Based Targets (SBT) for cutting emissions will qualify for the government grant. If a car's basic model is below £37,000, any pricier trim levels up to £42,000 may be eligible for the grant. No cars that exceed £42,000 will be eligible, regardless of the price and emissions of its most basic model.
Many manufacturers have responded by providing their own discounts and incentives, separate to the official government Electric Car Grant. You can view the full list of EV discounts here.