I think you forgot a word in the title....not........serious lack of traction, change the rear set up, springs etc to the set for convertibles, multi leaf with the two lower plates going all the way to the mounts and it'll grab n go, you seem capable of keeping it straight but that car doesn't want to, while it may look cool to be spinning and smoking the tires like crazy it's not due to major HP, is due to a lack of traction and it's not safe, they can grab suddenly at WOT, I know because I launched a car over a bridge once.