We have had four MK4 MX5’s - quite brilliant - the only negative as mentioned earlier, is passenger footwell space as apparently the engine management kit lurks beneath the forward carpet!
No problem for passengers shorter than six foot - and even then OK for all but long journeys.
Hood down takes less than five seconds.
Good Luck
Just to correct these posts re the MX5. The MK1 or NA 1989 to 1997 and the Mk2 or NB and NB facelift 1998 to 2005 had the ecu behind the front firewall at the passengers’ feet, the biggest problem being the rear cabin drain holes behind the seat belt towers that the hood drains into get blocked with leaves, the water overflows the area and falls into the passenger footwells. The carpets are waterproof and do not appear damp and the water damages the ECU. That in turn in the MK2 or NB which controls the alternator charging , that cooks the battery.
The MK3 or NC 2005 to 2015 and the Mk4 or ND 2015 to probably 2024 have the ECU at the area near the top of the offside inner wing. Therefore, any person complaining about the Mk4 having a problem with legroom due to the position of the ECU is somewhat confused.