9 Year old SEO Review

Previous SEO review we done on a website 9 years ago, this is included purely as the website is still live and now has 500% more visitors per month than it did before we took over the design and marketing of it.
We would like to share you a free SEO preliminary analysis report for your website and SEO portfolio, this will show you our seriousness and honesty with regards to this email. First, we would like to show case our capabilities and expertise and after that we will talk more about further proposal.
I would appreciate if we can have a quick meeting on phone, and taking this communication further to next level. When is a good time to discuss for you?
Thanks for your interest in Delicious Webdesign, we are professionally managed Web development and Internet marketing Company based in Essex having a core competency / expertise in Search Engine Optimization (SEO), SMO, pay per click (PPC, Business branding, traffic/leads generation & internet marketing, Website development, eCommerce, web portal, social networking, B2B/B2C, Open Sources and we also have comprehensive experience in designing SEO friendly websites. We are more than interested in working with you and building a long term Business relationship.
We have thoroughly analyzed and noticed that the website has some potential loopholes that need to be fixed in order to make it 100% search engine friendly, while following recent Google updates and guidelines. Let us share a few points of our preliminary analysis:
1. We found that your website is 3 years old, last updated 3 weeks ago.
2. You do not specify a canonical URL on your site.
3. This site has more than 7 Script HTTP request(s).
4. This site has more than 2 CSS HTTP request(s).
5. We did not find CSS-based print-friendly versions on your site.
6. We did not find any Sitemap on your site.
7. We did not find robots.txt on your site.
8. We did not find 404 page on your site and make sure your 404 page uses the same look and feel (including navigation) as the rest of your site. We recommend that you create a useful 404 page.
9. We did not find HTTP Caching on your site.
10. We did not find any gzip or deflate on your site.
11. Currently, we have not found your website Blog. It can interact with visitors, visitors will learn more about your site.
12. Currently, we have not found your website Forum. It can interact with visitors, visitors will learn more about your site.
13. The pagerank of your site is 3, it is too low, may be too few backward links.
14. This website has 3 backward links. It is too few.
15. This site is not listed in DMOZ Directory.
16. This site is not listed in Yahoo Directory. If it is listed in the directory, it will have a positive effect.
17. This site has 18 images, 18 images no title attribute.
An additional Review from another site:
1 Technical – Website is responsive (works on tablets / touch devices)
2 Usability – Phone number is an image and not clickable (click to call) does not work on the phone either
3 Usability – The ‘Print’ icon is old-fashioned and not-needed
4 Display – The Hot Deal car has the price but its not centred and looks odd
5 SEO – The Manufacturers ‘search’ page has the word ‘search’ in it
http://www.skyfleetcarleasing.co.uk/search/manufacturer/hyundai
its irrelevant and bad for SEO
6 Display – About page – Hyperlinks should have a mouseover function and the blue underline is outdated as a hyperlink
7 SEO – Images should be in lower case only (W3C standards)
8 Display – Footer has no mouseover effects for links
9 Usability – No anti-spam question or captcha on contact form / leave a message
10 SEO – Copied text on this page http://www.skyfleetcarleasing.co.uk/info/lease-or-purchase/
11 SEO / Legal – Car Photos on the news pages are copied / stock image – do you have a licence for these?
12 Usability – change the word ‘Blog’ to ‘News’
13 SEO / Usability / Accessibly – Image names should be changed to represent what they are currently a Volvo is
named vos6s.jpg http://www.skyfleetcarleasing.co.uk/car-images/vos6s.jpg
14 SEO – Not enough testimonials
15 SEO / Usability – how about a FAQ page to give the customer answers what he commonly asks
16. Home page – at the bottom, looking for a van? when you click on Learn more the hyperlinks on the next page
dont work
17. Menu – Makes and Models, if clicked on it goes back to the home page. I know they have to click on the drop down
bar but does it have to go back to the home page
Based on our assessment; the website needs complete On-page and Off-page optimization from scratch.