WARNING: The following contains spoilers for Batman #88, by James Tynion IV, Guillem March, Tomeu Morey and Clayton Cowles, on sale now.

Ever since the start of writer James Tynion IV's tenure on Batman (which began with issue #86), we've learned of a new villain named the Designer who has ties to Gotham City's past. The Designer began his bid to take over Gotham by unleashing five of the DC Universe's deadliest villains. And as he took them on, Batman debuted a series of new inventions and gadgets to help in his evolving war on crime.

In Batman #86, the Dark Knight debuted the Nightclimber, a crime-fighting vehicle akin to a Transformer. What's more, issue #87 also introduced the Bat-Shot, a sled on wheels that allows Batman to engage in tight, high-speed chases, as well as a new prison complex, the Black Block, which is meant to hold the biggest, baddest and most resourceful supervillains. But the new inventions don't stop there.

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Now, in Batman #88, we witness the debut of a device called the Echo -- a Batmobile that fits in the Caped Crusader's pocket.

In the issue, we find the Dark Knight after he has just successfully apprehended Cheshire -- the only one of the five assassins who had managed to escape him. Unfortunately for him, as soon as he has her in his grasp, he hears the situation at the Black Block has taken a turn for the worse; the Designer was somehow able to break through its defenses and now the other four assassins are loose. With the situation more than pressing, Batman has to get to the prison complex -- and he has to get there fast.

Since last issue saw him shoot down from the Nightclimber inside the Bat-Shot, he unfortunately doesn't have a Batmobile at his disposal to rush over there -- or so he thinks. It turns out Lucius Fox has designed the Echo, and it's already on Batman's utility belt.

The Echo is a handheld device no bigger than a phone that can be slapped onto a random car on the street. The device connects to the Wayne Enterprises components in the engine, and it allows the car to bypass normal speed regulations. Better yet, it creates a holographic image of a Batmobile over the car.

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Essentially, Batman can now turn any car that has Wayne Enterprises components in its engine into a Batmobile. He will go faster than the average vehicle, but it's also important to remember the holographic hull is just that -- an image. It doesn't offer any extra protection... Something Lucius reminds Batman of after he takes his own car for a test run that ends with a smashed wall.

The Echo changes the game for Batman. Now, if he needs a quick getaway or engages in a chase, basically every car in Gotham City is at his disposal. Any vehicle around him can be transformed into a temporary Batmobile -- he just has to remember to return it to its owner when he's done.

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