Buy Smart Convertible 451 with 70,000 km used??

Hi dear ones, I’m new here but I’ve been reading along for a long time. I’m planning to buy a smart, preferably a convertible. I’ve now found an offer for a convertible EZ 2007 (so no MHD) with just under 70,000km, 71hp and it’s supposed to cost 3,98€. Do you think that you can buy a smart with “so many and so many miles still in good conscience? Have read more often that the Mitsubishi engines can be relatively reliable without MHD? What do you think might be a catch with the offer? Have you already used the search function and read a lot, I would be interested in what you think of the offer also regarding the price etc. (Is with seat heating and power steering and probably also gives guarantee). I think the offer is almost too nice to be true you know? I hope no one is stoned now that I have opened a new topic for this??. Would I very much like a few opinions n smarties experienced by you are happy and grateful for every advice/tip!