Like Cypress Mountain (via Cypress Bowl Rd.) and Mount Seymour (via Mt. Seymour Road), what satisfies these criteria:
They must be located within the following (demarcated) area:
My grandparents wish to drive upward to enjoy scenery at higher elevations. So local maxima, and not summits (i.e. global maxima), suffice.
The roads must begin south of these mountains (e.g. West or North Vancouver, Coquitlam, Mission, Harrison Mills), to minimise driving time from Vancouver.