Latter question: it's 92kWh, which is not unreasonable even if it's twice what some entry level cars are being sold with.

Deep dive on the pack: https://www.batterydesign.net/byd-blade-2-0-compared-to-1-0/ ; it seems they've done some good old fashioned mechanical engineering to minimize the "not cells" part of the battery while keeping the liquid cooling effective.

Cost in Europe: based on past cars .. maybe 50-100% more? Higher taxes AND higher margins.

I can find the previous Seal at £46k for the premium spec version (390kW / 83kWh): https://www.arnoldclark.com/new-cars/byd/seal/390kw-excellen... , or you can lease it for £321. UK leasing seems to be the last place it's possible to get an actual beat the market deal, which is odd.