Don't the modern high performance roadsters (McLaren 650, Ferrari 488, etc.) all have automatic folding roofs? I assume these are expensive plus heavy. But will buyers put up with a manual lift off T-top/targa roof in a ~$100k car?
05 Elise, ST, sports, touring, hardtop, DBA 4000 slotted discs, Ferodo DS2500 pads, Sector 111 gpan3, EP Tuning Quickrack, Pro Alloy rad, DS brace, HnT pad, front and rear tow hooks, CG lock, ORE double cup holder (caffeine for track); '86 911 Targa (sold); '68 MGB (being restored)