Spoiler Alert: Careful for spoilers if you haven't seen last night's episode of the Flash because we'll be entering spoiler territory. So, if you haven't watched it yet, go watch it and then come back. You have been WARNED!
Now that we have got that out of the way, let's begin! Last night on The Flash, we saw Katie Cassidy return to the Flarrowverse once again after the death of her character, Laurel Lance on Arrow. But this time Cassidy didn't return as Black Canary, but as Black Siren. And she was absolutely perfect!
The episode gave us an epic fight scene between The Flash and Black Siren. Black Siren almost had Barry under her control before Wally came racing in, hit the Black Siren with his car and saved the day. But that scene might have been more important than you realised. The scene might have just teased which version of Wally's suit we might get to see on the Flash, if and when he becomes a speedster. The car that Wally was driving was a clear indicator of the suit we might get to see Wally wear. The scene happened too quickly and it was impossible to catch a proper glimpse of the car. And who would have wondered that a car might have hidden secrets? Well, have a clear look at Wally's car first.
Now, look at the colour combination of this car. Doesn't it look familiar? Doesn't it remind you of the New 52 Wally West Costume?
We know that when it comes to The Flarrowverse, nothing happens by accident. They could have gone with any colour combination for Wally's car. But they chose the combination that's similar to Wally West's costume. The producers and writers of the show put it out there as a small Easter Egg hinting Wally West's costume for the future seasons of the show. And they put it in the most subtle way so that probably no one would understand.