Matching a pontoon Weld-Craft CDL 70 Pontoon (18 ft.) 2008 against a flat Weld-Craft UVCDS 70 (18 ft.) 2009 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
Both boats share a closely matched power ceiling — 40 hp for the Weld-Craft CDL 70 Pontoon (18 ft.) 2008 and 40 hp for the Weld-Craft UVCDS 70 (18 ft.) 2009. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.
Both boats are rated for 5 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
Bottom line: The Weld-Craft CDL 70 Pontoon (18 ft.) 2008 and Weld-Craft UVCDS 70 (18 ft.) 2009 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.