They do run better after a long freeway run. I took my SDL on a little 50 mile trip today and it loved it. I wasn't going to drive because I didn't want to burn the fuel, but it hadn't been on the open road in so long I felt bad.

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2006 CL500
2009 C300 4matic
1969 280SE
2023 Ram 1500
2007 Tiara 3200