Motorcycles younger that 40 years in UK are taxed as follows:
over 600cc £121 per year,
401 to 600cc £87
151 to 400cc £57
up to 150cc £26.

Cars are based on emissions and range from £10 to £5490 depending upon age and emissions
https://assets.publishing.service.gov.uk/media/67d1b940a6d78876a3fb0a67/v149-rates-of-vehicle-tax-for-cars-motorcycles-light-goods-vehicles-and-private-light-goods-vehicles-april-2025.pdf