[{"data":1,"prerenderedAt":361},["ShallowReactive",2],{"project-7985054":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":10,"maker":11,"posted_at":12,"year":13,"points":14,"comments":15,"rank_in_year":16,"shown_in_year":17,"top":18,"tier":19,"category":20,"subcategory":21,"format":22,"keywords":23,"reception":29,"sentiment":30,"stance_mix":31,"scored_comments":36,"aspects":37,"strip":45,"post_text":47,"what":48,"said":85,"maker_in_thread":198,"shape":207,"grid":211,"attempts":323,"same_week":324,"maker_shows":293,"maker_hidden":353,"reader_version":354,"card":355},"7985054","Car Cost Calculator","my weekend project","title","Show HN: Car Cost Calculator – my weekend project","http:\u002F\u002Fcar-cost-calculator.com","car-cost-calculator.com","khet",1404414941,2014,48,45,671,2272,30,"shown","web_saas","car ownership cost calculator","web_app",[24,25,26,27,28],"car cost calculator","car ownership cost","depreciation","total cost of ownership","fuel cost","curious",-0.127,{"positive":32,"neutral":33,"mixed":34,"critical":35},3,16,2,6,27,{"idea":38,"performance":40,"design":41,"execution":43,"docs":44},{"positive":34,"critical":39},1,{"positive":39,"critical":34},{"positive":42,"critical":39},0,{"positive":42,"critical":39},{"positive":42,"critical":39},[32,39,42,32,46,42,32,32,42,42,32,46,39,42,42,32,42,32,32,42,42,42,32,46,32,42,42,42,42,42,42,32,32,32,39,39,39,32,32,39],5,null,{"problem":49,"audience":65,"pricing":47,"motivation":47,"time_to_build":76,"stack":82,"openness":83,"stage":84,"team_size":83},{"value":50,"source":51,"evidence":52},"Estimating the true cost of owning and running a car","inferred",[53,57,61],{"id":54,"by":55,"text":56},"7985124","emeltzz","You might add a parking cost field, because for anyone in a city, parking's unlikely to be free",{"id":58,"by":59,"text":60},"7985256","bitJericho","Don't the maintenance costs go up after a while. Otherwise people would only buy 10 year old cars as they'd be like 20-30k cheaper :D",{"id":62,"by":63,"text":64},"7985225","zdrummond","Nice idea, but I actually think Edmund's TCO is a bit more comprehensive and uses real world data for each car. http:\u002F\u002Fwww.edmunds.com\u002Fporsche\u002F911\u002F2011\u002Ftco.html?style=101380348",{"value":66,"source":51,"evidence":67},"People buying or comparing cars",[68,72],{"id":69,"by":70,"text":71},"7985736","gedrap","The other week I was thinking about buying a car to save money on commuting... And I'm sure I am not the only one. I definitely see value in this tool. I have 0 experience with…",{"id":73,"by":74,"text":75},"7986494","pcl","This is a great tool! It'd be awesome to add lease information into it as well, to help with the lease-vs-buy decision.",{"value":77,"source":78,"evidence":79},"weekend project","maker",[80],{"id":81},"post",[],"unknown","launched",{"praise":86,"objections":99,"requests":135,"questions":163,"alternatives":176},[87],{"value":88,"source":89,"evidence":90},"Exponential depreciation model seems reasonable","commenter",[91,95],{"id":92,"by":93,"text":94},"7985226","mgolawala","scroll down. He explains his algorithm : \"The caclulator uses exponential depreciation is used to calclate the cost of depreciation and the asset value of a car over time\" That…",{"id":96,"by":97,"text":98},"7986193","pkulak","Yup. And I'd say that's pretty accurate.",[100,111,117,124],{"value":101,"source":89,"evidence":102},"Depreciation rates seem too high for some cars",[103,107],{"id":104,"by":105,"text":106},"7985630","OrwellianChild","While I'm fine with exponential depreciation, the rates are very high (or maybe just variable by car). My RAV4 has closer to 9-10% depreciation (assuming 15k miles\u002Fyear) per the…",{"id":108,"by":109,"text":110},"7985821","uncoder0","Yeah I actually have an outlier that has negative depreciation. Got it used for 26k with 44k miles. 6 Months later my insurance company informed me that they had to put my car…",{"value":112,"source":78,"evidence":113},"Maintenance cost model is a rough hack",[114],{"id":115,"by":11,"text":116},"7985277","The problem there is, I have no idea how to model maintenance costs! The field is basically a hack. If there is a better way, I'd like to do that.",{"value":118,"source":89,"evidence":119},"Default gas price looks too low",[120],{"id":121,"by":122,"text":123},"7985390","timjahn","The default gas price is shown as $3.40\u002Fgallon. Where are you getting gas that cheap??",{"value":125,"source":89,"evidence":126},"Metric units missing",[127,131],{"id":128,"by":129,"text":130},"7986524","xexers","Thanks! Feature suggestion: Metric units (for every other country that is not the USA)",{"id":132,"by":133,"text":134},"7987399","guidedlight","I completely agree. This tool is useless to me in Australia, unless I convert all the units. Even within the same measurement system different countries express units in…",[136,141,145,153],{"value":137,"source":89,"evidence":138},"Add metric units",[139,140],{"id":128,"by":129,"text":130},{"id":132,"by":133,"text":134},{"value":142,"source":89,"evidence":143},"Add parking cost field",[144],{"id":54,"by":55,"text":56},{"value":146,"source":89,"evidence":147},"Add lease versus buy comparison",[148,149],{"id":73,"by":74,"text":75},{"id":150,"by":151,"text":152},"7987713","officialjunk","I too would like to evaluate lease versus buy.",{"value":154,"source":89,"evidence":155},"Model maintenance by mileage and time",[156,159],{"id":157,"by":105,"text":158},"7985669","Depends on how deep you want to go, but you could set up a table with common considerations and let users set frequency... Most maintenance is mileage-dependent, so if you base…",{"id":160,"by":161,"text":162},"7985758","vonmoltke","To complicate matters, some of those items are time or distance items. Oil and battery, for instance, need to be changed after a certain amount of time regardless of the miles…",[164,171],{"value":165,"source":89,"evidence":166},"Where does the depreciation model come from",[167],{"id":168,"by":169,"text":170},"7985090","sixQuarks","Where did you get a 20-30% average depreciation on cars? Depreciation is not linear on vehicles. Most of the depreciation occurs in the first few years and then tapers off. Is…",{"value":172,"source":89,"evidence":173},"How to model maintenance costs",[174,175],{"id":58,"by":59,"text":60},{"id":115,"by":11,"text":116},[177,184,191],{"value":178,"source":89,"evidence":179},"Edmunds TCO",[180,181],{"id":62,"by":63,"text":64},{"id":182,"by":105,"text":183},"7985581","Nice aspirational example there with the 911... Didn't know about TCO, but I like the idea. First glance impressions of the Edmunds tool: ``` - Mileage assumes 15k\u002Fyear, which…",{"value":185,"source":89,"evidence":186},"Maintenr",[187],{"id":188,"by":189,"text":190},"7985941","korzun","Like someone else mentioned, there are better tools to calculate static ownership costs. This is definitely a good start. I'm working on https:\u002F\u002Fwww.maintenr.com and we allow you…",{"value":192,"source":89,"evidence":193},"TrueDelta",[194],{"id":195,"by":196,"text":197},"7985798","chiph","What if you were to partner with someone like truedelta.com?",{"comments":32,"answered":34,"key":199},[200,203,204],{"id":201,"text":202},"7985263","I'm using an exponential depreciation function to calculate the cost of the car in time. The car loses most of it's value during the first few years.",{"id":115,"text":116},{"id":205,"text":206},"7985521","It's $1.97 where I live (Dubai). You should see what that does to the traffic!",{"commenters":208,"max_depth":35,"maker_replies":32,"first_comment_mins":209,"lifespan_hours":210},34,7,92,[212,214,216,218,222,224,226,228,229,232,234,237,240,242,244,245,248,251,253,255,256,259,261,264,266,269,270,271,272,275,277,281,282,285,288,290,291,295,298,302,307,310,312,315,319],[54,42,32,213,55,42],"project\u002Fneutral\u002Fidea",[168,39,39,215,169,42],"project\u002Fcritical\u002Fperformance",[92,39,42,217,93,42],"commenter\u002Fneutral\u002Fperformance",[219,39,32,220,221,42],"7985244","project\u002Fneutral\u002Fperformance","jeffasinger",[96,39,46,223,97,42],"project\u002Fpositive\u002Fperformance",[201,39,42,225,11,39],"maker\u002Fneutral\u002Fperformance",[104,39,32,227,105,42],"project\u002Fmixed\u002Fperformance",[108,39,32,220,109,42],[230,39,42,217,231,42],"7986513","phamilton",[188,34,42,233,189,42],"other\u002Fneutral\u002Fidea",[235,34,42,233,236,42],"7986212","darksim905",[238,34,32,239,189,42],"7999381","maker\u002Fneutral\u002Fidea",[69,32,46,241,70,42],"project\u002Fpositive\u002Fidea",[58,243,39,215,59,42],4,[115,243,42,225,11,39],[246,243,42,247,59,42],"7985531","other\u002Fneutral\u002Fperformance",[249,243,32,220,250,42],"7985565","rzt",[157,243,32,252,105,42],"maker\u002Fneutral\u002Fdesign",[160,243,42,254,161,42],"commenter\u002Fneutral\u002Fdesign",[195,243,32,239,196,42],[257,243,32,220,258,42],"7985911","incision",[260,243,42,217,236,42],"7986230",[262,243,42,263,258,42],"7986360","commenter\u002Fneutral\u002Fidea",[265,243,42,263,236,42],"7986422",[267,243,32,225,268,42],"7985924","alecdbrooks",[73,46,46,241,74,42],[150,46,32,213,151,42],[121,35,32,220,122,42],[273,35,42,217,274,42],"7985401","nilkn",[276,35,42,217,122,42],"7985508",[278,35,42,279,280,42],"7986001","other\u002Fneutral\u002Fpricing","adrinavarro",[205,35,42,225,11,39],[283,35,42,279,284,42],"7986259","obilgic",[286,35,42,217,287,42],"7985788","Zircom",[128,209,32,289,129,42],"project\u002Fneutral\u002Fdesign",[132,209,32,289,133,42],[292,293,32,213,294,42],"7985360",8,"Istof",[296,293,32,213,297,42],"7985476","sebnukem2",[299,293,39,300,301,42],"7989818","project\u002Fcritical\u002Fidea","altcognito",[303,304,39,305,306,42],"7985675",9,"project\u002Fcritical\u002Fdesign","sergnech",[62,308,39,309,63,42],10,"project\u002Fcritical\u002Fexecution",[182,308,32,311,105,42],"project\u002Fmixed\u002Fexecution",[313,308,32,220,314,42],"7985816","maxerickson",[316,308,42,317,318,42],"7986178","commenter\u002Fneutral\u002Fnone","dang",[320,321,39,322,297,42],"7985745",11,"project\u002Fcritical\u002Fdocs",[],[325,330,335,339,344,348],{"id":326,"name":327,"points":328,"category":329},"8011081","Sysadmin Casts",443,"learning_science",{"id":331,"name":332,"points":333,"category":334},"8004839","Hacker News Redesign",380,"productivity",{"id":336,"name":337,"points":338,"category":329},"7985692","Full Stack Python",327,{"id":340,"name":341,"points":342,"category":343},"7985162","Prelang",229,"dev_tools",{"id":345,"name":346,"points":347,"category":329},"7985305","A Rogue State Along Two Rivers",212,{"id":349,"name":350,"points":351,"category":352},"7984989","Freeciv web client",197,"games",false,"v2",{"id":356,"name":5,"line":6,"ai":353,"cat":20,"year":13,"points":14,"comments":15,"rec":29,"s":357,"top":18,"kw":358,"maker":11,"domain":10,"tier":19,"attempts":42,"strip":359,"url":9,"mix":360,"praise":88,"objection":101,"sub":21},7985054,-0.13,[24,25,26,27,28],"3103503300351003033000353000000333111331",[32,33,34,35],1794036519447]