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The Regional Transportation District's four new rail cars — which are open to the public this week on the tracks behind Denver Union Station — have a new car smell.
The cars are bigger than the light-rail cars currently used on RTD's rail system.
And they're a symbol of the massive FasTracks construction project RTD has focused on in the 10 years since Denver-area voters approved the project — and the 0.4 percent sale tax to help pay for the project.
"This is a big deal," said Phil Washington,…