I'm looking to replace my Hyundai Ioniq with another PHEV, what should I choose?

I currently have a Hyundai Ioniq PHEV that I plan to replace this August with a new PHEV. The Ioniq PHEV is no longer produced - what would you recommend about the same size?

Will a plug-in hybrid save me money if I use it as an EV?

I have an MG HS PHEV. With energy prices being as high as they are right now, is it best to use it on electric power on a daily basis or will it be cheaper to run the car on petrol only?

Is my MG HS exempt from the London Congestion Charge?

Is the MG HS 1.5 Gdi DCT Exclusive exempt from the London Congestion Charge, please?