On 28 August, the Government introduced a change with how the Electric Car Grant applies to different variants of eligible vehicles.
A variant-version of a vehicle approved for the grant (entry level price £37,000 or lower) is also eligible but only to an upper value of £42,000.
Previously, all variant-versions would be eligible providing the entry-level model was £37,000 or lower AND on the basis that trim or specification changes taking the value above that limit do not affect the capacity of the battery, drive train configuration or maximum net power. This aspect still applies, but only to the upper threshold of £42,000.
See the BVRLA’s Electric Car Grant FAQs resource: Government introduces Electric Car Grant.