I would go with the GSR for one thing 114,000 miles is a lot, even though it is an Acura, I think you could get either car for less than $14,000 though because of the higher mileage on them and they are at a dealership (might be able to get it for $12,000). The GSR gets way better gas mileage than the CL because it has a 4cyl, compared to the CL's 6cyl and the GSR is a lot lighter. If you plan on Modding then you definitely have to go with the GSR. I was thinking of getting a 98-99 CL a while ago and found that there are almost no aftermarket parts for it. Pretty much all you can do is intake, exhaust and, ECU. I think there is only one, two at the most, body kits made for it. You can also check out Acura-CL.Com they can probably answer a lot of your questions about the CL