What these offer is fantastic handling. But the problem with all of them is lack of torque at low revs, to the extent you can find yourself needing 4th for slight motorway inclines. As long as you're happy with having to change down when you wouldn't normally expect to, fine. A turbo would overcome this, but that wasn't the point of the design. The MX5 based FIAT Spider does, in fact, have a turbo and, despite a mere 1.4 litre capacity, actually has more mid-range torque than the MX5 2.0 litre. I remember the Mk II MX5 1.6 that came with a measly 88hp and feeling stupid not even having the power to overtake.