In comparison to the Elise, the MX5 is a different kettle of fish and they really can’t be directly compared. It’s like trying to compare a cheetah with a tame house cat - they’re worlds apart in terms of differences.
It all depends what you’re after. If you want a real, proper raw driving experience, the Elise will definitely give you that. There’s no driver aids (ABS, servo’s on the brakes, power steering, traction control, etc).It’s just you and the car enjoying the ride. However, if you’re not a very good driver the Mazda can give you the same thrills at much lower speeds (meaning you’re less likely to lose your license) and is more forgiving of driver errors (meaning you’re less likely to have an accident). If you’re into going round corners quickly, I think you’d struggle to find another mass market car that does it as well as the Mazda for the money. Even at low speeds, the MX5 gives grins per mile; it’s a joy to drive, with just the right amount of input necessary from the driver to keep it interesting, but if you just want to pootle around, it’s good for that too. The Elise WANTS to be driven hard, it calls you to engage with it in a way that the Mazda doesn’t demand.
The roof on the Elise (particularly the S1) is a pain in the bum, especially if you get caught in unexpected rain and want to put it on quickly. You’ll struggle to do it in less than 3 minutes on your own, even with lots of practice, whereas the Mazda is a case of pulling two catches and it’s up or down without any effort at all.
Getting in and out of the Elise when the roof is on takes a certain technique, which can be a struggle if you’re over 5’ 10", or on the portly side. I have known people who have put their backs or knees out!
The boot space in the Lotus is barely bigger than a squishy weekend bag, and if you’ve got the roof in the boot as well, you’ll be looking to travel VERY lightly if you go away anywhere. The boot on the Mazda isn’t that much bigger, but you don’t have to store the roof in it. It can take a medium sized suitcase (suitable for a week away), or a weeks shopping for a small family, and of course, you can buy a luggage rack. You can get luggage racks for the Lotus as well, but would you really want to?
Things go wrong on Lotus’s: Because of the need to make the car lightweight, the parts on it can break relatively easily (compared to other cars) and they’re expensive. Unless you know what you’re looking for when you buy, you could end up having to replace the steering rack, suspension, bushes, radiator and all sorts of other stuff before you get chance to even drive it (we had to replace all those parts during our two year ownership), plus service charges (which aren’t that expensive but they need to be done more frequently), tyres (which are expensive), brake pads, and some other cables and stuff. If the car is going to be a daily driver, you have to be prepared to do some work on it yourself or it’s going to cost you a pretty penny keep taking it to a garage.
There is no comfort in the Elise. No carpets, no electric windows, the windscreen wipers are rubbish, it’s noisy, it’s impossible to drive wearing a skirt and heels - that may not apply to you
but if you have a girlfriend or wife who fancies a go, she may not like it. There’s no space to put anything apart from a little net that hangs behind the seats, the seats can’t be adjusted and the original seats are blumming hard (but they have fantastic lumber support, which the MX5 doesn’t IMO).
However, all the things that make the Elise sound like a nightmare to own all become irrelevant when you drive it. I had an S1 for just short of 2 years and absolutely LOVED it, but it just became much too expensive to own as I was using it as a daily driver, so it had to go and was replaced by a Suzuki Swift Sport, which I just couldn’t bond with. The Sport didn’t last long because I really really wanted an MX5 and that’s what I’ve got now. A MK2.5 1.8 Sport. Do I love it like I loved the Elise? Yes, I do, but in a different way. It’s an easier car to won because it’s so versatile, it’s nice to drive at sensible speeds to and from work, but if I fancy a bit of a hoon, I can do that too. I’ve yet to find a downside of owning the Mazda (apart from the very occassional need for more power).