2f:T61f,carMagazineElectricVsWinterTestSource = [ { model: "Tesla Model Y", officialRange: 331, actualRange: 241, officialEfficiency: 4.42, actualEfficiency: 3.26, actualBatterySize: 75, }, { model: "MG4 Trophy", officialRange: 270, actualRange: 199, officialEfficiency: 3.7, actualEfficiency: 3.1, actualBatterySize: 61.7, }, { model: "Renault Megane E-Tech", officialRange: 280, actualRange: 177, officialEfficiency: 3.9, actualEfficiency: 2.71, actualBatterySize: 61, }, { model: "Toyota BZ4X", officialRange: 277, actualRange: 155, officialEfficiency: 4.4, actualEfficiency: 2.53, actualBatterySize: 71.4, }, { model: "Genesis GV60", officialRange: 289, actualRange: 181, officialEfficiency: 3.25, actualEfficiency: 2.43, actualBatterySize: 74, }, { model: "Mercedes-Benz EQE", officialRange: 356, actualRange: 235, officialEfficiency: 3.3, actualEfficiency: 2.23, actualBatterySize: 90, }, { model: "Kia EV6 GT", officialRange: 263, actualRange: 177, officialEfficiency: 3.01, actualEfficiency: 2.19, actualBatterySize: 74, }, { model: "Porsche Taycan ST GTS", officialRange: 301, actualRange: 219, officialEfficiency: 2.93, actualEfficiency: 2.01, actualBatterySize: 83.7, }, { model: "VW ID. BUZZ", officialRange: 255, actualRange: 164, officialEfficiency: 2.92, actualEfficiency: 1.99, actualBatterySize: 77, } ];30:[{"id":"efe1c9a6e7ec7ef3a289b1ff04021d3992e901a33295e4a1779fa9566f8cef3fc528519996740b1b8c86b57a11508f3333bf66f2afc12ee8601a9b4f817ccf15","href":"https://static.observableusercontent.com/files/efe1c9a6e7ec7ef3a289b1ff04021d3992e901a33295e4a1779fa9566f8cef3fc528519996740b1b8c86b57a11508f3333bf66f2afc12ee8601a9b4f817ccf15","name":"car-magazine-electric-vs-winter-test.json","type":"application/json","lastModified":1673467992760.103,"size":181},{"id":"ee0001c3afa226d54f3b94f97122387c21e727ce1816564c3d154ef9571b9e56e1c201acdf69f8a8f60b512b5474f174db3b1763c56cce08c7e6f4d88e20428b","href":"https://static.observableusercontent.com/files/ee0001c3afa226d54f3b94f97122387c21e727ce1816564c3d154ef9571b9e56e1c201acdf69f8a8f60b512b5474f174db3b1763c56cce08c7e6f4d88e20428b","name":"car-magazine-electric-vs-winter-test@1.json","type":"application/json","lastModified":1673468049917.644,"size":142}] 2d:{"title":"Car - Electric vs winter test","cells":[{"id":0,"value":"# Car - Electric vs winter test","pinned":false,"hidden":false,"mode":"md"},{"id":199,"value":"Source","pinned":false,"hidden":false,"mode":"html"},{"id":5,"value":"viewof RangeHorizontalBar = {\n let bars = vl.markBar();\n \n return vl.data(carMagazineElectricVsWinterTestRanges)\n .title('Range results from the article')\n .encode(\n vl.x().sum('value').axis({title: 'Range (miles)'}),\n vl.y().fieldN('model').sort('-x').axis({title: null, labelLimit: 500}),\n vl.color().fieldN(\"stat\").legend({title: null})\n )\n .layer(bars)\n .width(width)\n .autosize({type: 'fit-x', contains: 'padding'})\n .render();\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":46,"value":"viewof EfficiencyHorizontalBar = {\n let bars = vl.markBar()\n \n return vl.data(carMagazineElectricVsWinterTestEfficiency)\n .title('Efficiency results from the article')\n .encode(\n vl.x().sum('value').axis({title: 'Efficiency (miles per kWh)'}),\n vl.y().fieldN('model').sort('-x').axis({title: null, labelLimit: 500}),\n vl.color().fieldN(\"stat\").legend({title: null})\n )\n .layer(bars)\n .width(width)\n .autosize({type: 'fit-x', contains: 'padding'})\n .render();\n}","pinned":false,"hidden":false,"mode":"ojs"},{"id":68,"value":"viewof BatterySizeHorizontalBar = vl.markBar()\n .data(carMagazineElectricVsWinterCalculatedBatterySize)\n .title('Battery size checksum results')\n .encode(\n vl.row().fieldN('model').header({ title: null, labelAngle: 0, labelAlign: 'start'}),\n vl.x().sum('value').axis({title: 'Size (kWh)'}),\n vl.y().fieldN('stat').axis({title: null, labels: false}),\n vl.color().fieldN('stat').legend({title: null, labelLimit: 300})\n )\n .width(730)\n .render();","pinned":false,"hidden":false,"mode":"ojs"},{"id":186,"value":"

Using only numbers from the article only the Tesla Model Y's balance.

Not sure why.

Maybe because the efficiency numbers are taken from the cars trip computer and they are doing range/battery size rather than range/addressable battery capacity? (gross vs net)

That might explain why the numbers are off by a similar percentage.

Except for the Toyota which would have to have a bigger battery than the cars trip computer thinks it has. 🤷‍♂️

","pinned":false,"hidden":false,"mode":"html"},{"id":195,"value":"

Update:

Turns out the Toyota keeps a much larger amount battery power in reserve when reporting 0% remaining. This explains the issue above.

\nSource","pinned":false,"hidden":false,"mode":"html"},{"id":60,"value":"carMagazineElectricVsWinterCalculatedBatterySize = carMagazineElectricVsWinterTestSource.reduce((acc, obj) => {\n acc.push({ model: obj.model, stat: \"Quoted Battery Size\", value: obj.actualBatterySize });\n acc.push({ model: obj.model, stat: \"Calculated Battery Size (Quoted Range / Quoted Efficiency)\", value: Math.round(obj.officialRange / obj.officialEfficiency) });\n return acc;\n}, []).sort((a, b) => b.value - a.value)","pinned":false,"hidden":false,"mode":"ojs"},{"id":49,"value":"carMagazineElectricVsWinterTestEfficiency = carMagazineElectricVsWinterTestSource.reduce((acc, obj) => {\n acc.push({ model: obj.model, stat: \"Actual Efficiency\", value: obj.actualEfficiency });\n acc.push({ model: obj.model, stat: \"Official Efficiency\", value: obj.officialEfficiency - obj.actualEfficiency });\n \n return acc;\n}, [])","pinned":false,"hidden":false,"mode":"ojs"},{"id":32,"value":"carMagazineElectricVsWinterTestRanges = carMagazineElectricVsWinterTestSource.reduce((acc, obj) => {\n acc.push({ model: obj.model, stat: \"Actual Range\", value: obj.actualRange });\n acc.push({ model: obj.model, stat: \"Official Range\", value: obj.officialRange - obj.actualRange });\n \n return acc;\n}, [])","pinned":false,"hidden":false,"mode":"ojs"},{"id":36,"value":"$2f","pinned":false,"hidden":false,"mode":"ojs"}],"files":"$W30","stdlib":"1","titling":"auto"}