Bought the pre-order and logged in.
Got the mount and armor set in the collections window, but no one to give the quest.
Flew from Valdrakken to Thaldraszus and a little pet drake named "Herald Flaps <Valdrakken Messenger>" was flying after me - also showed up on the minimap. It gives the "Lightning Strikes" quest. Turn it in to the NPC in Waking Shores then the NPC will give you "The Storm Race Tour" quest.
Upon completion of the races/quest, you'll get "Ensemble: Thundering Stormrider's Attire" and some gold.
For each race, talk to the Bronze Timekeeper and select the Storm Race option. It will automatically put you on the storm gryphon mount.
Note: You get a new ability that REPLACES Whirling Surge. The new ability is "Lightning Rush" - 30 second cooldown. "Activate to engage a sustained boost for 5 sec. Only available at 10 stacks of Static Charge. Replaces Whirling Surge". Spell ID: 418592.
You get stacks by flying close to walls. Use it when you have a good straight-distance line because you won't be able to turn well after you activate it. Also, as you're flying through the rings, you may see a lightning orb - when you pick it up, it resets the cooldown on Lightning Rush. 1st stack gives you a 4 second buff, then each stack refreshes back to 4 seconds, up to a max of 10 stacks. If you're not flying close to a wall, the stacks can fall off!
Timers are a little tight - figuring out when to use lightning rush (because you can't turn well for a few seconds after activation and stacks can fall off) will be the key to completing the races with Gold.