grid4.vl

{
    "repeat": [
        "Horsepower",
        "Miles_per_Gallon",
        "Acceleration",
        "Displacement",
        "Weight_in_lbs"
    ],
    "spec": {
        "mark": "bar",
        "data": {
            "url": "https://vega.github.io/vega-lite/data/cars.json"
        },
        "encoding": {
            "color": {
                "field": "Origin",
                "type": "nominal"
            },
            "x": {
                "field": {
                    "repeat": "repeat"
                },
                "bin": true,
                "type": "quantitative"
            },
            "y": {
                "aggregate": "count",
                "type": "quantitative"
            }
        }
    },
    "$schema": "https://vega.github.io/schema/vega-lite/v4.json",
    "columns": 3
}