KeiEVCost
The BYD RACCO, Nissan Sakura, and Honda N-VAN e: all sit near 100万円 after subsidies — but the math changes depending on which prefecture and ward you live in. KeiEVCost calculates your real out-the-door price for your address and tells you which kei EV actually wins on range-per-yen for your daily commute.
Japanese first-time kei EV buyers in their 30s-50s comparing the RACCO against the Sakura and N-BOX e:
- Subsidy stack calculator: national CEV + prefecture + municipal grants, refreshed monthly
- Side-by-side comparison on range, charging time, 0-50 km/h, cargo space, and price-per-km of usable range
- 'My commute' mode — enter km/day and it ranks cars by whether they need a daily charge
- Dealer locator with hours, demo-car availability, and a one-tap reservation request
BYD's RACCO launch at ~214万円 with ~200万円 effective price just created a genuine three-way race in the kei EV segment for the first time, and most Japanese buyers have no idea how subsidy stacking works across national + prefectural + city levels.
Multiple Japanese media outlets actively covering RACCO subsidy math and three-way kei EV (サクラ/N-ONE e:/RACCO) comparisons; Diamond, Kenyaku, Mynavi all running deep comparison articles, and 2000+ JP Google searches for BYD ラッコ 価格 confirms strong first-time-buyer curiosity.【スクープ】中国BYD初の軽EV「RACCO」の価格判明!43万円の補助金ハンデでも「実質100万円台」、日本の軽市場に殴り込み ↗【7/28発表】BYD新型軽EV「RACCO」価格・航続距離まとめ｜日産サクラとの補助金43万円差と、伸び悩みが指摘される10の理由 ↗
Whitespace is narrow — at least 4-5 free Japanese subsidy calculators already exist (nekopoke, minna-no-dentaku, Blade Note, studio-muku, evhojokin-navi) and major kei-EV comparison articles do the RACCO-vs-Sakura math manually; no clear kei-EV-only niche left.Ev補助金シミュレーター2026 - 国+自治体+実質価格を30秒で計算 - Blade Note ↗
All observed comparators are free (ad/content-supported); nekopoke, Blade Note, minna-no-dentaku all offer the calculator at zero cost with no paywall. No evidence of direct WTP for a narrow kei-EV pricing tool — affiliates/dealer leads are plausible but thin.EV補助金シミュレーター｜実質購入価格・回収年数を無料計算 ↗
Kei-EV segment is structurally growing (Nissan Sakura, Honda N-ONE e:, Mitsubishi eK X EV, BYD RACCO all active in 2026) so the category persists, but subsidy rules just revamped in April 2026 and require annual rewrites; benefit decays unless maintained as a broader kei-EV hub.Byd補助金2026はいくら？国15万円+自治体上乗せの実質価格を全車種で計算 - Blade Note ↗
Build is straightforward (HTML form + JS, 47-prefecture lookup tables) — demonstrated by multiple simple tools already live — but accuracy disclaimers are unavoidable since real subsidy depends on grade, V2H, 再エネ契約, fiscal-year budget and dealer-specific campaigns, raising ongoing maintenance cost.