No problem running those flares but you will need to install a different suspension geometry so you do not have the problems as mentioned. Severe scrub angles and excessively lowered MR2's damage the bearings, increase the weight of the steering, effect handling in a negative way. A A link type suspension is the best way to manage it. You can then push the hub out another 50-100mm, improve the roll centres, lower the scrub angles. This has not been done by anyone as yet but its not impossible but will cost about 5000 to design and fit such a system. You will then need longer axles but that too is not a big deal.
At a guess, this particular car is running airbag suspension as its would not be possible to run a car that low everyday on coilovers without a bunch of problems.