I thought about a Tesla, but the payments are roughly double, and I only spend c. £150 per month on fuel, so a bit too much for me. Although with the 100% tax write down it would even out.
The seats in the S90 are very comfy, but not in the old Volvo "arm chair" soft style. They are very firm, but with the seat base extension (£350) that also includes pneumatic lumber support, they are excellent. Chuffed to bits with it.