The median 2018 Mercedes-Benz GLA sits at $18,894 in the Canadian market right now. Most examples land between $17,543 and $19,712, so anything inside that band is priced where the market expects. That's a tight spread. Roughly $2,200 separates a cheap listing from a pricey one, which means the year doesn't have wild price swings to hunt through.
Median mileage on these cars is 101,492 km, so by now most 2018 GLAs are past the six-figure mark on the odometer. When you look at a listing, that's your reference point. A car well under 101,000 km should sit toward the upper end of the range, and one well above it should sit lower. If an over-100k car is asking near $19,712, the mileage isn't backing up the price.
What mileage does to the price
Every extra 10,000 km knocks about $383 off what a 2018 GLA sells for. Put that in real terms. A car with 130,000 km should run roughly $1,100 below one at 101,000 km, all else equal. That's a slow bleed rather than a cliff, so chasing the absolute lowest-odometer example rarely pays for itself once the asking price climbs. A clean car in the middle of the pack is usually the smarter buy.
Use the $383 figure to sanity-check any listing. Take the mileage gap from 101,492 km, multiply the difference in 10,000 km chunks by $383, and adjust the $18,894 median accordingly. If a seller's number lands well above that math, you've got room to negotiate or a reason to keep looking.
We flagged 19 deals on the 2018 GLA over the last 90 days, so under-market cars do surface at a steady clip. If you're patient and you know the range cold, you don't have to overpay. Wait for one that prices below $17,543 with sensible mileage and you're buying under the market.
Numbers reflect live listings across Canada over the last 90 days, filtered for outliers. Data as of . Prices in CAD.