article: Hillary Clinton’s security detail arrived at a suburban Des Moines, Iowa fruit processing company on Tuesday with an added vehicle – a second Scooby. After her signature oversize black Chevy conversion van dropped her off at Capitol Fruit Company in Norwalk, Iowa, a visually identical GMC van drove up to the building with a nearly identical Secret Service escort vehicle. Both armored vehicles have raised roofs, deep-tinted windows and New York license plates. But while the original van – the one nicknamed 'Scooby' after the Scooby-Doo cartoon show – sports a mustard-yellow New York tag, the second has blue and white plates of a different design. Scroll down for video . WHY BUY ONE WHEN YOU CAN HAVE TWO AT TWICE THE PRICE? The first picture of both of Hillary Clinton's Scooby mobiles. One is a GMC and the other is a Chevrolet, but they are mechanically identical . CONVOY: Scooby-one and Scooby-two took up positions in Hillary's motorcade on a freeway near Des Moines . BACK SEAT DRIVER? Hillary Clinton climbs into the so-called Scooby van after a campaign stop at Capital City Fruit in Norwalk, Iowa . Clinton (right), a Democratic presidential hopeful and former secretary of state, posed for selfies with fans after meeting with members of the Iowa State legislature at the State Capital on Wednesday . It’s common for U.S. Secret Service to employ 'decoy' vehicles, identical in design, in order to inject some mystery into VIPs' travel plans, if for no other reason than to confuse and discourage would-be attackers. When President Barack Obama returns to the White House after long trips, his arrival on the Marine One helicopter can be a shell-game exercise when three identical choppers appear on the horizon. Only one, of course, lands on the South Lawn. A Secret Service spokesperson said the agency does not comment on security arrangements for dignitaries. FLASHERS: 'Scooby-two' forced an Iowa motorist to leave the roadway on Wednesday so it could go through a red light and rejoin the caravan . Mrs. Clinton enjoys constant protection at taxpayers' expense because she is part of a former first family, not as a result of her service in the U.S. Senate or the State Department. But at some point during presidential campaigns, front-runner status generally attracts Secret Service as a candidate’s profile is elevated and crowd sizes swell. On Wednesday, the two Scooby vans arrived at Clinton's appointed location separately, but left together in a seven-car motorcade. UNDER GUARD: Two Secret Service agents with Scooby One in Iowa today . MOTORCADE: The Clinton convoy includes both Scooby vans and four black Suburbans, believed to all be Secret Service vehicles. It also included a white minivan on Wednesday . Scooby-Two’s driver brought up the rear, at enough of a distance to allow another car to pull in front of him. When that car stopped at a red light, the GMC van’s blue and red flashing lights came on. The stray car’s driver pulled to one side and Scooby-Two zoomed into the intersection, against the light . DECOYS: The Secret Service frequently deploys duplicates of aircraft and cars it uses to transport VIPs – including Marine One, the president's customized helicopter, which usually travels with two decoys .
highlights: Second modified, armored van spotted near Des Moines, Iowa alongside the one that Hillary Clinton travels in .
  Visually identical black vehicles' biggest difference is the color of their New York license plates .
  One is a Chevy and the other a GMC but they are mechanically identical and one was seen using Secret Service-fitted red and blue lights .
  Van dubbed 'Scooby' in homage to the Scooby-Doo cartoon show brought Clinton to Iowa from her New York house .
  'Scooby-Two' made its debut in Norwalk, Iowa on Wednesday outside a fruit processing plant where Clinton made a scripted appearance .
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