🚗 Project TrueCost: Radical Transparency

Status: Lean Implementation | Market: UK Automotive | Stack: Next.js 16 / Supabase

➡️ Want to check it out for yourself? https://truecost-mu.vercel.app/

01. Strategic Discovery | The “Why” & “Who”

Mission: To empower UK car buyers with radical financial transparency by unmasking the “ghost costs” of vehicle ownership.

Vision: To be the mandatory first click in every UK car-buying journey—moving the conversation from “What is the price?” to “Can I actually afford this?”

📊 The “Why Now” (Market Mapping)

The Cost-of-Living Crisis: Car insurance premiums and fuel prices are at record highs. Buyers are no longer “window shopping”; they are “budget-protecting.”
The Regulatory Maze: Between ULEZ expansions, complex VED (Road Tax) bands, and the upcoming 2025/28 EV tax shifts, the “simple” act of taxing a car has become a math problem most people fail.
The Incentive Gap: Dealerships and finance companies have zero incentive to show you that a £15,000 BMW might cost more over 3 years than a £20,000 Toyota.

💡 “Don’t just buy a car. Own the cost.”

02. Problem Synthesis | The “What”

The Core Insight: Users aren’t just looking for data; they are looking for certainty. The “Surprise Tax” (like the £440 expensive car supplement) is an emotional and financial trauma for the unsuspecting buyer.

🔍 The Information Gap

Feature	The Industry Approach	The TrueCost Approach
Road Tax (VED)	Hidden in small print or “Year 1 only.”	10-year forecast including the £40k+ supplement and pay per mile TAX
Maintenance	“Full Service History” (vague).	MOT-driven predictive signals (Brake/Tyre wear).
Fuel/Electric	Lab-tested MPG (unrealistic).	Real-world blended tariff calculations (Home vs. Public).
Depreciation	Ignored until trade-in day.	Fuel-type specific curves (showing the “Cash Loss”).

03. Solution Ideation | The “How”

We explored several ways to deliver this data before landing on a Reg-Lookup Engine.

The “Static Guide” (Rejected): Too hard to keep updated with fluctuating tax/fuel rates.
The Browser Extension (Rejected): High friction; doesn’t work on mobile while standing on a dealer forecourt.
The Deterministic Engine (Selected): A high-speed, Next.js-powered web app that uses the Registration Plate as a unique key to unlock a 5-year TCO (Total Cost of Ownership) dashboard.

04. Lean Implementation | The “Start”

The infrastructure is built to be stateless and fast, relying on live DVLA/DVSA data rather than static databases.

🛠️ The Technical Moat (The Engine)

The product differentiates itself through its Deterministic Calculation Engine (/lib/):

VED Era Detection: Automatically sorts cars into one of three tax eras (Pre-2001, 2001-2017, Post-2017) to prevent “tax shock.”
MOT Signal Extraction: We don’t just show the MOT result; we parse the text for “advisories” to inflate maintenance budgets (e.g., “Thin brake pads” = 1.3x maintenance multiplier).
Smart Caching: Using Redis with a 1-hour TTL to ensure speed without hitting API rate limits.

Current Win: The “Expensive Car Supplement” detector. If a car’s list price was >£40k, we calculate the 6-year surcharge that most buyers miss.

Strategic Decision:

Phase 1 (Current): Fixed curves based on model.
Phase 2 (Immediate): Scraping public market data (AutoTrader/) to build model-specific curves. Building a repository of service bulietins from manufacturers, that contain information about servicing costs for different models.

🎨 Visual Identity & Design

The “Result” Page: A toggleable cost layer (Fuel, Tax, Maintenance, Depreciation) that lets users see exactly where their money is “leaking.”
The “Persona” Entry: Tailoring the mileage and driving style to the user (The Commuter vs. The Weekend Driver) to ensure the 5-year forecast is personal, not generic.

05. Growth & Optimization | The “Scale”

The North Star Metric: Decision Confidence Score.

🚀 The Phase 3 Roadmap

Predictive Maintenance ML: Moving from heuristic keyword matching to a probabilistic model trained on the national MOT corpus.
“Tax-Watch” Email Alerts: Utilizing the email_subscribers table to notify users exactly how much their specific car’s tax will rise after the October Budget.
B2B Fleet Planner: Helping small business owners compare the “real” cost of transitioning a fleet of 5 vans from Diesel to Electric (including BIK tax and eVED).
Premium PDF Reports: Professional-grade “Vehicle Health & Cost” audits for high-value used car purchases.