Escalating the amusement park arms race, Six Flags Magic Mountain in Valencia, Calif., said it would open the world’s tallest and fastest looping roller coaster next spring.

The debut of Full Throttle will bring the number of coasters at the park to 18, widening Magic Mountain’s lead over its longtime rival Cedar Point. The Sandusky, Ohio, amusement park has 15 coasters.

For years, Cedar Point and Six Flags Magic Mountain have battled for the title of “roller coaster capital of the world” by adding and operating the most coasters of any amusement park.