don't worry, its a short drive from miri to lawas, just make sure you have the following:
1. car fuel is enough - fill in malaysia side; if you fill in brunei side; you will pay the marked-up price at a special pump; dont do it unless emergency
2. car registration for brunei custom done online nowadays - save the QR code onto your phone; via screenshot and put your phone screen brightness to max when scanning at border later
3. toll is BND/SGD 3 at kuala belait
4. if you are not sarawakian; make sure to bring the sarawak entry slip or the dokumen perjalanan terhad along to exit malaysia border
5. car tint is not allowed in brunei - depends on your luck - summon is 50 BND; and yes... even the default new car UV tint also will kena... as long as you wind down the window and got a tint layer, police will summon... all brunei car have ZERO tint... except for the "special" folks

pm me if you need more info... enjoy the drive!

hahahaha u have better luck than me i guess... my 4wd only got the default UV tint... 50 bnd gone   
the check-point is in between KB and Seria though... on the main highway

just pump full at miri, u can reach lawas with half of ur fuel still there

need passport and pray if ur car got tinted, there is no road block at brunei

if there is, prepare to fork out rm180 malaysia ringgit or brunei 50 dollar to pay the summon on the spot.

no excuse, even light tinted also kena

and dont forget to apply for car document in here

http://www.bdnsw.gov.bn/Pages/VehiclePass.aspx

yours news is February news.. while us here always using the road and recentlly some of my friend all kena sapu and bayar rm180

dont trust your news folks.. brunei strict

u tak kena road block.. u kena u pay.. at border no one check.. but if u kena check, padam mukak u.. they scracth ur tinted a bit so u need to tanggal it later.. lol