The cheaper rental of $70+ compensate for the higher petrol
costs.
For a 400km shift, fuel consumption of 13km/l (conservative
figure, some driver can achieve 15km/l) fuel cost is
[(400/13*1.747)*0.84] = $45.15
RON 92 petrol = $1.747 per litre
Esso's dicount card for Prime = 16% (13% upfront at petrol kiosk,
3% rebate through GIRO from Prime)
Overall cost = $75 + 45.15 = $120.15 (assuming rental as
$75)
It's up to each individual on how they view this biz.
Take ur Prius lagi cheaper bro ;)