Just to give you an example of motor tax in Ireland for some SUVs:
2019 RX450H pays 280 euros and costs 67,950 euros
2007 RX400H pays 1,809 euros and costs 3,750 euros
2008 RX400H pays 1,250 euros and costs 6,500 euros
2021 NX300H pays 420 euros and costs 54,250 euros
2017 NX300H pays 270 euros and costs 36,900 euros
2020 X5 pays 790 euros and costs 107,950 euros
2008 X5 pays 1,250 euros and costs 9,550 euros
2020 Q7 pays 790 euros and costs 95,950 euros