LE had a warrant dated 6/6/19 to seize and search the white Jeep. When searched, nothing was seized from it. That 6/6/19 SW indicated the Jeep is stored at CT State Police, Litchfield. ETA: I don't know if it was later returned.
The Avon address searched yesterday was NOT one of the properties for which there was a SW in the early dump of SW's (over 400 pages worth, most in May and early June, a few in July, and one in Oct, 2019) around the time of the January 2020 arrests. Those addresses included 4 Jefferson Crossing and 80, 84, and 88 Mountain Spring Rd in Farmington, 585 Deerclif Rd in Avon, and 61 Sturbridge Hill Rd in New Canaan.
When referring to an earlier search, I believe they are referring to a couple of weeks ago (around May 21st) when police were at the 44 Sky View Rd property. Discussion of that is on page 7 of this thread. ETA: During that discussion, quoted from a related HC article: "State police sources said they received a copy of the demolition permit and spoke with the property owner, David Ford, who gave them permission last fall to conduct a search. Police did visit the property, but didn't get a search warrant for it and didn't bring cadaver dogs to search the large swath of woods behind the house or the septic tank, as they did at several other properties that Dulos owned, sources said."