This is what i'm getting a quote on line so far, first shot they gave me. I'm trying to get my monthly payments down to around 300 a month in 72 months. Do you think it's doable or should I just get the LS? Also does anyone have a list of the differences between the LT1 and the LS? Thanks!!

2009 Chevy Malibu LT1
Exterior: Silver Moss Metallic
Interior: Ebony
MSRP: $24,700.00
Internet Sales Price: $23,759.00
GM Rebate: $2,500.00
Parks Discount: $720.00
Total: $20,539.00 (plus tax,doc,tag)

Edit:

2009 Chevrolet Malibu LS
Exterior: Imperial Blue Metallic
Interior: Titanium
MSRP: $22,275.00
Internet Price: $21,518.83
Rebates: $2,500.00
Parks Chevy Discount:$500.00
Total: $18,518.83
(plus tag, tax, doc)