ok, time for a reality check. All figures are approx. range,
depending on usage of car. Inclusive of loans, petrol, parking,
erp, fines, and road tax + insurance added then divided by 12 to
include into monthly expense and 0-10k downpayment minus off from e
cost of e car. 
normal wrx = $1300 - $1500 monthly
silvia s 15 = $1400 - $1600 monthly
Evo MR = $1700 - $1900 monthly
skyline = $1800 - $2000 monthly
z4 3.0l = $2200-$2500 monthly
330CI cabriolet = $2300-$2600 monthly
these are just rough figures i and my friends who drive e cars talk
about at e coffeeshop. Most of e more expensive cars costs are
shared by several family members. Btw, i don't have a friend who
owns an MR or a skyline, that one we just guess together.
so moral of e story, we will continue just dreaming bout these
kinda cars till we have better fortunes. 