The current Mazda MX-5 is 3,915 mm long, 1,735 mm wide and 1,227 mm tall, on a 2,310 mm wheelbase.
| Years | Length | Width | Height | Wheelbase | Boot capacity | Turning circle |
|---|---|---|---|---|---|---|
| 1990–1998 | 3,950 | 1,675 | 1,230 | 2,265 | 160 | 9.1 |
| 1998–2005 | 3,975 | 1,680 | 1,225 | 2,265 | 144 | 9.2 |
| 2005–2009 | 3,995 | 1,720 | 1,255 | 2,330 | 150 | 10.0 |
| 2009–2015 | 4,021 | 1,720 | 1,250 | 2,330 | 150 | 10.0 |
| 2015–presentCurrent | 3,915 | 1,735 | 1,227 | 2,310 | 130 | 9.4 |
Exterior figures are manufacturer specifications for the MX-5, averaged per generation across its variants and shown for the most common body style. Generations with the same size are merged. Boot capacity is the seats-up figure where the manufacturer quotes one.