I had a previous generation Trafic, I now have a New Transit Custom LWB “Double cab in van” (Crew cab) for exactly the reasons you want one 😉
Done 17000 miles in it so far and its ace 150ps, LTD Spec, so its got all the toys, and its just like a big car but with a properly usable space in the back
I can get 6 people, 6 bikes in the back with wheels on.
Last week I had 4 bikes in the back, lengthways, wheels on.
3 of them were large frame full sus 29ers, just top and tail them with a bit of foam between them.
Ride and handling – I preferred my traffic, suspension is a bit more sophisticated, but I also think some of the difference is tyres.
Transit is quick though, and new Trafic is 1.6L only, with either single or twin turbos depending on power required.
I get about 30mpg out of mine, mostly dual carriageway commute, and its normally unloaded.
If I drive like my nan, I can creep that up to 35-38mpg but its soul destroying.
I find it comfortable, I think the Renault has more cubby holes etc, but I`ve gotten used to the Transit now.
Go drive them both, see whos offering the best deal. be aware that delivery on both is about 3-4 months.
When I was looking I couldn’t get a Trafic, but TBH the Deal Ford put together couldn’t be touched by anyone else anyway !!
I have no regrets