The service, which is part of a pan-European initiative, now features a car comparator allowing users to configure and compare models from different manufacturers.
The group is also planning to add a residual value forecast function by the end of the year. A damage estimator, which calculates the cost of minor vehicle repairs, will be added next year.
Alastair MacLeod, chief operating officer at EurotaxGlass’s, said: “This is one of the biggest internet development projects targeting new and used car buyers throughout Europe.
“These new websites will provide the easiest possible route to establishing an accurate valuation for a used vehicle, and offer a range of useful interactive features.”
The new site has been designed to enable users access via mobile phones and handheld computers.
A range of additional interactive features is also in the pipeline, including a user forum and a blog submitted by the Glass’s Guide valuation team.
Initially Glass’s five key markets – the UK, Austria, France, Germany and Switzerland – will be able to access the new services, with remaining countries being given access over the next few months.