Currently have ds in a maxi cost opal, which leaves nowhere near enough leg room in the front. He's near to the upper weight for it to rear face so need to replace it. Also, pregnant and have bought a maxi cost pebble which only just fits behind drivers seat.
New baby will.use infant carrier for a long as possible. Ds needs a new erf seat which can go behind either seat but must give leg room.
I'd strongly suggest speaking to securatot (email or phone). In car safety centre were great on one issue I had but on a recent ERF issue they weren't as helpful as securatot who had lots of suggestions
I totally understand where you're coming from. I had exactly the same and it got to the stage where my baby was at the weight limit so I had to bite the bullet and just order. It worked out well and I'm pleased but boy did I experience cold sweats and grey hair