Did I pay too much for my Yaris?

[parce1992]

i bought my toyota yaris 4 door
I test drove it and i liked it more than the 3 door
also got an awsum deal (at least I think it is)
2.9 apr and it came out to be like a little less than 18000 with taxes and the gap and like platinum warranty (i think its called that)
i got a 08 4 door yaris black manual
power pack and a couple of fun stuff
also paid 400 less than msrp...
i'm pretty sure its a decent deal