I completed in Lonestar proam for 3 years 2014-2106 and I've been drifting for fun since 2012, I know what I'm talking about. From the top, cars need to be setup pretty neutral as far as weight is considered. Competitive drift cars dial in a shit ton of rear grip, how else do you expect to accelerate in drift in order to close a gap? Unless you are using a wisefab setup Ackerman is your friend. Generally front tires are kept within 235mm wide with very few exceptions (nto5r's, direzza z2's etc are generally used up front). The front tires though slimmer than what most used in grip racing are that way to create clearance from lock to lock. Suspension Is still setup to maximize grip. Camber inclination properly setup will put more grip on the leading tire at full lock by allowing it sit flat and cause the trailing tire to easily drag by causing it to tilt. The biggest difference between drift cars are setups involving stiff spring with no sway bar, or soft springs with a lot of sway bar. Clever ballasts are common too. Here's a link of me tandeming with Masashi yakoi at lonestar bash in 2015 I think.
https://youtu.be/zN5oTpQYZOYTrust me on this guys, grip! Grip! Grip! Is what you want in a drift car.. unless you want to be slow and useless on track... Most of us corner balance and setup the cars in very similar fashion to the road race guys. A properly setup race car will make an awesome drift car with just a change of tires as long as the car is rear wheel drive and has a good power to grip ratio.
Now you still don't want understeer, obviously oversteer is the goal, but proper driving technique will make the most out of a neutral car... Also that link you posted two tone is irrelevant, that video was made by a dude who drifted 4age ae86's and sr20 (relatively low powered) powered 240's. The name of the game has changed and so has the style. Sure he's a legend and was awesome in his time but drifting has evolved. The whole haul ass into a turn thing and then scrub speed with angle, while not requiring much rear grip and power wasn't ever very popular in American competitive drifting... Though it is very fun and rewarding when done right. Ramble ramble