On the DVD audio commentary for this episode during the bathroom scene, Peter Lenkov mentions that director Steve Boyum's name appears as a graffito on the bathroom wall with the message 'For a good time, call Steve Boyum'.
Dr. Bergman's daily driven vehicle is an early 1970s Volkswagen Type 181 sport utility vehicle, sold in the USA as The Thing between the 1973/74 model years - it was discontinued in the USA after the 1975 model year due to DOT safety regulations due to its classification as a passenger car as opposed to a Sport Utility Vehicle (the 181 is the ancestor of the Crossover Utility Vehicle using a passenger car platform e.g. a Toyota Highlander or Dodge Caliber). The VW Type 181 was produced initially for the West German military between 1969-1983 for NATO forces, with civilian sales commencing during the 1971 model year; low demand for the civilian market in the UK and USA forced VW to move production to Mexico in the early 1970s where it was sold locally - its known use is for a resort vehicle used in Mexican resorts like the Las Brisas in Acapulco.
The trivia item below may give away important plot points.
When Kono is taken by Wo Fat's men, he throws her laptop into the ocean. Although the logo is never shown, it was a Apple MacBook Pro. This sparks the end of any Apple computers being used in the show and the beginning of all computers being Windows based.