I'd guess about a 0.4 litre by the lack of speed, even making use of the special rental car turbo function...
Quite comfy, but if the front people have long legs the rears will be crushed.
Europecar man at Berlin Schonefeld asked "would you like to add sat nav to that?" - I said no. Jumped in the car - full blown sat nav present - I wonder if I'd have paid for the privilege otherwise!!!

Volvo XC90 T6 Inscription Pro. 2018.
Honda S2000. 2003.
F31 MSport+ 335D XDrive. 2014. SOLD
No. 097. D3BT Saloon 2010. Manual. Black Sapphire. SOLD
No. 389. D3MT Saloon 2007. Manual. Black Sapphire. SOLD