Hi I got a base model stinger and I love it. The deal was 250 a month with 4000 down I did 5000 down after tax and tags I'm at 400 a month did I get a good deal
Msrp? Sale price? What's your tax rate? Mf? I can't even tell whether you leased or purchased. If that's a lease, no, probably not good. How did you end up paying $1k more down and $150/mo (!) more than the "deal" price? Your effective payment ($5k down / 36 mos = @140) of $540 seems very high for a base model. More on par with a premium or GT0.
If that's the loan payment, maybe you did okay? Again, need more info to know.