Start your engines: Here is your crash course on the IndyCar Freedom 250 Grand Prix weekend

The NTT IndyCar Series is about to hold one of its biggest, most ambitious spectacles ever with the Freedom 250 Grand Prix.

If you're an IndyCar fan, then you know how we got to the point where Pennsylvania Avenue has a pit lane and start-finish straight with a picturesque view of the U.S.

Capitol .

But if you're not, here's a quick rundown.

TRUMP TOUTS INDYCAR DRIVERS' 'SPECIAL' ABILITY AT FREEDOM 250 GRAND PRIX SHOWCASE, SEEMINGLY ENDING HOT DEBATE Back in January, President Trump signed an executive order that directed multiple federal agencies to work with the Washington, D.C., mayor's office to put together a circuit for an IndyCar race.

This idea was to make it part of the America 250 celebrations , although oddly enough, the 250-mile race distance wasn't part of the event until just a few weeks before.

Also, when the executive order was signed and the event announcement was made, the IndyCar schedule had been out for quite some time and was only about a month from starting.

Of course, for a once-in-a-lifetime event like this, you make it work.

INDYCAR STAR ALEX PALOU REFLECTS ON WHITE HOUSE, OVAL OFFICE VISIT WITH TRUMP: 'INCREDIBLE EXPERIENCE' The circuit for the Freedom 250 Grand Prix uses streets around the National Mall and in front of the Capitol building, as well as a section of Pennsylvania Avenue.

That portion of Pennsylvania Avenue is also where the pit lane is located.

The layout is fairly simple with just seven corners, but don't equate "simple" with easy.

It's mostly 90-degree or almost-90-degree corners, but take a look at Turn 6.

It doesn't really come through on that map, but it's a chicane and a pretty narrow one at that.

Take a look at an onboard from a Corvette hot lap.