a friend of mine has one, the same model your referring to, only his is the group A edition, which is rare.
they weigh over 1500kg, cause of the 4wd gear. they are not quick at all. (thats my opinion, anyway...) his car was close to standard and i could beat him convincingly in my stock mx-6! they are expensive to modify, cause they aren't a common car and i reckon they look like a frog with wheels!!!
this is just my opinion/experiences. if your bro really wants one, then tell him to buy one, cause it'll make him happy. if he just wants a fast car, then i recommend he look else where....
my 2 cents......