Ogilvy Government Relations is representing Carvana, the fast-growing online used car dealer, on data privacy and security matters.

The Tempe, AZ-based company reported a 74 percent surge in Q3 revenues to $3.5B and a $68M loss, which was up from $18M a year ago.

Carvana blamed the deficit partly on “explosive growth” that created “significant operational constraints” in its system.

It explains that “buying more cars from customers leads to more last mile pickups, more customer care interactions, and more complex title processing requirements, which in turn leads to more complex registration processing.”

Ogilvy’s seven-person Carvana team includes Chris Giblin (chief of staff to Texas Republican Rep John Carter); Karissa Willhite (deputy CoS to Jersey Democrat Sen. Bob Menendez); and Todd Novascone (CoS to Kansas Republican Sen. Jerry Moran).

WPP owns Ogilvy.