Audi A6 Avant	Volvo XC90
Ford Galaxy (and Seat/VW clones)	Ford Focus (early prototype Trio)

This list is in its early days, and will be added to as we find out...

Cars we KNOW the Trio fits inside:
- Audi A6 Avant, 1998-2004 (easy, see picture above)
- Ford Focus estate, 1998-2004 (easy, see picture above)
- Ford Galaxy, 2000-2006 (easy, see picture above)
- Range Rover, 2002 on (very tight, but possible)
- Range Rover Sport (easy)
- Renault Megane Tourer, 2003-2006 (easy, see picture at bottom of page)
- Seat Alhambra, 2000 on (as Galaxy)
- Vauxhall Vectra estate, 2003-2009 (tight, requires tilting of boat)
- Volkswagen Golf estate, 1999-2005 (like a glove!)
- Volkswagen Passat estate, 2000-2005 (easy)
- Volkswagen Sharan, 2000 on (as Galaxy)
- Volvo XC90 (easy, see picture above)

Cars we're ALMOST CERTAIN the Trio will fit inside (based on observation and manufacturer data where available, but not actually tried yet, so not guaranteed):
- BMW 5 series estate (current and previous); latest 3 series estate
- Chrysler Voyager, Grand Voyager (possibly even with one rear row of seats), 300C Touring
- Citroen C5 estate, C4 Picasso, probably Berlingo, maybe C6
- Ford Focus estate (current); Ford Mondeo estates (most if not all); possibly latest generation Mondeo hatchback; SMax; latest Galaxy.
- Land Rover Discovery (all models)
- Honda Accord Tourer 2003 on
- all Mercedes E class estates; G class; ML
- Nissan Primera estate, 2002-2006
- Renault Laguna estate
- Peugeot estates, 406, 407 maybe 306
- Skoda Octavia estates, all; Superb estate
- Toyota Landcruiser Amazon
- Volkswagen Golf estate, 2005 on; Passat estate (pre 2000, post 2005 )
- Volvo 850, V70

Cars we know the Trio does not fit inside:
- Audi A6 Avant 2004 on (it would fit inside, easily, but has a smaller tailgate opening than the pre-2004 model)
- Audi A4 Avant (all versions)
- Vauxhall Vectra estate, 1996-2002 (not long enough)

The key dimension is 107cm (3ft 6"), the maximum beam of the Trio's centre section at the gunwhales (wooden trim). If you've got that clear between the rear pillars (where the tailgate opens) and also internally between the wheel arches, then it should be fine. However it's a boat, not a square box, so if your car is slightly narrower than that, particularly at wheel arches, there is often a way to get it in. Experience has shown, the only way to find out for definite is to try it.

The nested length is 1.6m (5ft 4"), which usually seems to be available in cars with the appropriate width dimension.