Hi Simon, I can recommend the Clarke CTJ2250LP from Machinemart. Cost is just under £50, it’s low profile and can lift 2.25 tonnes so suitable for most other cars as well.
Not used mine on the MX5 yet but have used on another car and the reviews are good, including one review that says “it could get under the back diff on my MX-5 just fine”
https://www.machinemart.co.uk/shop/product/details/clarke-ctj2250lp-2-25-tonne-low-profile-trolle
Phil