The Timex Sinclair 2048 was an enhanced version of the SinclairZX Spectrum computer. Never released by Timex Corporation in its home market of North America, it was essentially a cut-down TS2068.
The TS2048 retained the 2068's improved ULA and enhanced graphics modes, and had a built-in Kempston-compatible joystick interface, but in most other respects resembled the basic Spectrum: no sound chip and only 48K of memory. This did, however, mean that it was much more compatible with Spectrum software than its more capable sister machine. It was later brought into production by the Portuguese division of Timex under the name Timex Computer 2048 and today forms the basis of Andrew Owen's enhanced Spectrum-compatible machine, the Spectrum SE (http://zxse.raww.net/).
Sinclair attempted to capture the top-end calculator market with the Sinclair Sovereign, available in plated gold or silver, it was critically acclaimed for its excellent engineering and design and enjoyed short success.
Curry was impressed and encouraged Sinclair to adopt this as a product; an agreement was reached with Williamson but no contract was ever signed, Nat Semi had offered to redesign the project so that it used only their components and they also offered to manufacture the boards.
Sinclair C5 Sir Clive had long held an interest in electric vehicles and during the early 1980s worked on the design of a single-seater "personal vehicle".