Sounds good, let’s outline it step by step: first the engine – displacement, forced induction, torque curve, weight, and reliability for street use; next aerodynamics – drag coefficient, lift/drag balance, active aero options, and how that affects top‑speed and stability; then the suspension – geometry, dampers, weight distribution, and how it handles high‑speed cornering and braking; finally safety and regulatory compliance – roll cage, fire suppression, and emission controls. We can tackle each section in detail and see where we hit the limits.

Engine first: start by sizing the 3.2‑liter V6 with twin turbos so you hit that sweet spot of mid‑range torque without over‑boosting for street‑legal limits. Use titanium pistons, connecting rods, and crank to keep weight down, but don’t skimp on a robust cooling loop—radiator, oil cooler, and intercooler all have to keep the temps in check at sustained high RPMs. Next aerodynamics: target a 0.28 Cd, which means a carefully balanced front splitter and rear wing that generate negative lift at high speeds. Add an active diffuser that kicks in past 120 mph to squeeze down the car without creating drag at lower speeds. Check the CFD for vortex suppression around the sidepods too. Suspension: push‑rod front and multi‑link rear give you the precision you need. Set camber to about –2°, but keep it adjustable for track versus street use. Weight bias at 55/45 front to rear should give you a good balance—more front grip for braking, but enough rear stability for high‑speed cornering. Test with a high‑speed brake load simulator to make sure the dampers can handle the forces. Safety and regulation: a custom roll cage that meets FIA safety standards, integrated with a fire suppression system rated for the turbo’s heat output. Don’t forget the catalytic converter: tune it to stay under emissions thresholds while still allowing the turbo to rev freely. That’s the skeleton; we can flesh out the details in each block as we go.

Great, let’s pin down the key figures before we move to a prototype. Engine: 3.2 L, twin‑turbo, target 450 lb‑ft torque at 4,800 RPM, 800 lb‑ft peak, weight around 180 lb for the powertrain block. Aerodynamics: 0.28 Cd, lift coefficient –0.15 at 120 mph, diffuser angle 15°, wing area 2 ft², with a 3 kW electric motor to manage downforce above 120 mph. Suspension: push‑rod front, multi‑link rear, camber –2° at 50 mph, adjustable ±1°, dampers with 30 % preload adjustment, weight bias 55/45 front/rear, brake force distribution 60/40. Safety: roll cage rated to 2,400 lb impact, fire suppression 10 kW, catalytic converter tuned to 0.9 g CO₂ per mile. These are the starting numbers; we’ll iterate as we build the first prototype.

Sounds good—lock the specs, prep the parts list, and we’ll move to the build phase. Let’s keep the numbers tight, and we’ll double‑check everything in the test rig. On to the shop floor.

Got it—finalizing the parts list now and scheduling a shop‑floor visit to start the build. I'll keep the numbers locked and will hit you with the bill of materials once it's ready. Let’s bring this beast to life.