This liner comes in a very big box! It's a very good fit for the boot but arrives with each end very much bent over. The instruction leaflet recommends storing it for 24 hours at 70 degrees C to flatten it.. There's nowhere in my house that can offer that facility but if if you actually fit it in your MX 5 and then use a hair dryer set low on each end the corners become pliable and flatten with gentle hand pressure. The result is a comprehensive coverage of the boot floor offering protection from scuffing and liquid spillage. Before I bought it I did check out that it would fit. Andrew provided a response within hours of my enquiry. Doing business with Crayford is always a positive process.