I would stick with the Intrigue not unless this is a second vehicle. You are basically trading a 8 year old vehicle for a 15 year old vehicle. REliability is no longer a factor. YOu are dealing with how well each vehicle was manitained. In a 15 year old vehicle, anything can go due to age or mileage or in your case, weather.
If this is going to be a fun vehicle for you, go for it. The 300 is probably still fun to drive.